diff --git a/.gitignore b/.gitignore
index bd5f7e2..7c5ce4a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -119,4 +119,7 @@ dmypy.json
 .pyre/
 
 # automatic document build file
-docs/_site
\ No newline at end of file
+docs/_site
+
+#idea
+.idea/
\ No newline at end of file
diff --git a/.idea/.gitignore b/.idea/.gitignore
deleted file mode 100644
index 73f69e0..0000000
--- a/.idea/.gitignore
+++ /dev/null
@@ -1,8 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
-# Datasource local storage ignored files
-/dataSources/
-/dataSources.local.xml
-# Editor-based HTTP Client requests
-/httpRequests/
diff --git a/.idea/aws.xml b/.idea/aws.xml
deleted file mode 100644
index 99de319..0000000
--- a/.idea/aws.xml
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="accountSettings">
-    <option name="activeProfile" value="profile:default" />
-    <option name="activeRegion" value="ap-northeast-2" />
-    <option name="recentlyUsedProfiles">
-      <list>
-        <option value="profile:default" />
-      </list>
-    </option>
-    <option name="recentlyUsedRegions">
-      <list>
-        <option value="ap-northeast-2" />
-      </list>
-    </option>
-  </component>
-</project>
\ No newline at end of file
diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
deleted file mode 100644
index 03d9549..0000000
--- a/.idea/inspectionProfiles/Project_Default.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<component name="InspectionProjectProfileManager">
-  <profile version="1.0">
-    <option name="myName" value="Project Default" />
-    <inspection_tool class="Eslint" enabled="true" level="WARNING" enabled_by_default="true" />
-  </profile>
-</component>
\ No newline at end of file
diff --git a/.idea/inspectionProfiles/profiles_settings.xml b/.idea/inspectionProfiles/profiles_settings.xml
deleted file mode 100644
index 105ce2d..0000000
--- a/.idea/inspectionProfiles/profiles_settings.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<component name="InspectionProjectProfileManager">
-  <settings>
-    <option name="USE_PROJECT_PROFILE" value="false" />
-    <version value="1.0" />
-  </settings>
-</component>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
deleted file mode 100644
index 8161a60..0000000
--- a/.idea/misc.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.7 (base)" project-jdk-type="Python SDK" />
-</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
deleted file mode 100644
index 11066dd..0000000
--- a/.idea/modules.xml
+++ /dev/null
@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/.idea/pyjosa.iml" filepath="$PROJECT_DIR$/.idea/pyjosa.iml" />
-    </modules>
-  </component>
-</project>
\ No newline at end of file
diff --git a/.idea/pyjosa.iml b/.idea/pyjosa.iml
deleted file mode 100644
index b7077a5..0000000
--- a/.idea/pyjosa.iml
+++ /dev/null
@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="PYTHON_MODULE" version="4">
-  <component name="NewModuleRootManager">
-    <content url="file://$MODULE_DIR$" />
-    <orderEntry type="jdk" jdkName="Python 3.7 (base)" jdkType="Python SDK" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
deleted file mode 100644
index 94a25f7..0000000
--- a/.idea/vcs.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$" vcs="Git" />
-  </component>
-</project>
\ No newline at end of file
diff --git "a/docs/1_\354\204\244\354\271\230/README.md" "b/docs/1_\354\204\244\354\271\230/README.md"
index 3f48323..bc1b6d6 100644
--- "a/docs/1_\354\204\244\354\271\230/README.md"
+++ "b/docs/1_\354\204\244\354\271\230/README.md"
@@ -1,3 +1,21 @@
 # 설치 방법
 
-설치 방법에 대해서 소개합니다.
+## pip install
+
+1. pip를 이용하여 설치하는 방법 (pip command)
+
+```console
+pip install pyjosa
+```
+
+2. pip를 이용하여 설치하는 방법 (python3 command)
+
+```console
+python3 -m pip install pyjosa
+```
+
+3. 최신 버전 설치 방법(업데이트)
+
+```console
+python3 -m pip install pyjosa -U
+```
diff --git "a/docs/1_\354\204\244\354\271\230/install.md" "b/docs/1_\354\204\244\354\271\230/install.md"
deleted file mode 100644
index e38f212..0000000
--- "a/docs/1_\354\204\244\354\271\230/install.md"
+++ /dev/null
@@ -1,13 +0,0 @@
-# pip install
-
-1. pip를 이용하여 설치하는 방법 (pip command)
-
-```console
-pip install pyjosa
-```
-
-2. pip를 이용하여 설치하는 방법 (python3 command)
-
-```console
-python3 -m pip install pyjosa
-```
diff --git "a/docs/2_\354\230\210\354\240\234/README.md" "b/docs/2_\354\230\210\354\240\234/README.md"
index ddb8be2..9501d0b 100644
--- "a/docs/2_\354\230\210\354\240\234/README.md"
+++ "b/docs/2_\354\230\210\354\240\234/README.md"
@@ -1,3 +1,49 @@
-# 사용 예시
+# 간단한 사용 방법
 
-사용 예시에 대해 소개합니다.
\ No newline at end of file
+```python
+from pyjosa.josa import Josa
+
+print(Josa.get_josa("철수", "은")) # 는
+print(Josa.get_josa("오리", "을")) # 를
+print(Josa.get_josa("닭", "는")) # 은
+print(Josa.get_josa("산", "으로")) # 으로
+print(Josa.get_josa("명예", "과")) # 와
+print(Josa.get_josa("물", "나")) # 이나
+# 사람 이름 + 이가/가 를 구분하기 위해서는 조사부분에 '이가'를 입력합니다.
+print(Josa.get_josa("예나", "이가")) # 가
+print(Josa.get_josa("세환", "이가")) # 이가
+
+print(Josa.get_full_string("철수", "은")) # 철수는
+print(Josa.get_full_string("오리", "을")) # 오리를
+print(Josa.get_full_string("닭", "는")) # 닭은
+print(Josa.get_full_string("산", "으로")) # 산으로
+print(Josa.get_full_string("명예", "과")) # 명예와
+print(Josa.get_full_string("물", "나")) # 물이나
+# 사람 이름 + 이가/가 를 구분하기 위해서는 조사부분에 '이가'를 입력합니다.
+print(Josa.get_full_string("예나", "이가")) # 예나가
+print(Josa.get_full_string("세환", "이가")) # 세환이가
+```
+
+# 유용한 사용 방법
+
+```python
+from pyjosa.josa import Josa
+
+subject = '철수'
+obj = '산'
+
+full_string = f'{Josa.get_full_string(subject, "은")} {Josa.get_full_string(obj, "를")} 간다'
+
+print(full_string) # 철수는 산을 오른다
+```
+
+```python
+from pyjosa.josa import Josa
+
+subjects = ['철수', '세환', '길동']
+obj = ['산', '바다', '집']
+
+for i, v in enumerate(subjects):
+    print(f'{Josa.get_full_string(v, "은")} {Josa.get_full_string(obj[i], "를")} 간다')
+
+```
\ No newline at end of file
diff --git "a/docs/2_\354\230\210\354\240\234/example1.md" "b/docs/2_\354\230\210\354\240\234/example1.md"
deleted file mode 100644
index 980e7e5..0000000
--- "a/docs/2_\354\230\210\354\240\234/example1.md"
+++ /dev/null
@@ -1,25 +0,0 @@
-# 간단한 사용 방법
-
-```python
-from pyjosa.josa import Josa
-
-print(Josa.get_josa("철수", "은")) # 는
-print(Josa.get_josa("오리", "을")) # 를
-print(Josa.get_josa("닭", "는")) # 은
-print(Josa.get_josa("산", "으로")) # 으로
-print(Josa.get_josa("명예", "과")) # 와
-print(Josa.get_josa("물", "나")) # 이나
-# 사람 이름 + 이가/가 를 구분하기 위해서는 조사부분에 '이가'를 입력합니다.
-print(Josa.get_josa("예나", "이가")) # 가
-print(Josa.get_josa("세환", "이가")) # 이가
-
-print(Josa.get_full_string("철수", "은")) # 철수는
-print(Josa.get_full_string("오리", "을")) # 오리를
-print(Josa.get_full_string("닭", "는")) # 닭은
-print(Josa.get_full_string("산", "으로")) # 산으로
-print(Josa.get_full_string("명예", "과")) # 명예와
-print(Josa.get_full_string("물", "나")) # 물이나
-# 사람 이름 + 이가/가 를 구분하기 위해서는 조사부분에 '이가'를 입력합니다.
-print(Josa.get_full_string("예나", "이가")) # 예나가
-print(Josa.get_full_string("세환", "이가")) # 세환이가
-```
\ No newline at end of file
diff --git "a/docs/2_\354\230\210\354\240\234/example2.md" "b/docs/2_\354\230\210\354\240\234/example2.md"
deleted file mode 100644
index 2e60b28..0000000
--- "a/docs/2_\354\230\210\354\240\234/example2.md"
+++ /dev/null
@@ -1,23 +0,0 @@
-# 유용한 사용 방법
-
-```python
-from pyjosa.josa import Josa
-
-subject = '철수'
-obj = '산'
-
-full_string = f'{Josa.get_full_string(subject, "은")} {Josa.get_full_string(obj, "를")} 간다'
-
-print(full_string) # 철수는 산을 오른다
-```
-
-```python
-from pyjosa.josa import Josa
-
-subjects = ['철수', '세환', '길동']
-obj = ['산', '바다', '집']
-
-for i, v in enumerate(subjects):
-    print(f'{Josa.get_full_string(v, "은")} {Josa.get_full_string(obj[i], "를")} 간다')
-
-```
\ No newline at end of file
diff --git a/pyjosa/josa.py b/pyjosa/josa.py
index e720c05..77669c1 100644
--- a/pyjosa/josa.py
+++ b/pyjosa/josa.py
@@ -1,7 +1,6 @@
 from pyjosa.jonsung import Jongsung
 from pyjosa.exceptions import JosaTypeException
 
-
 class Josa:
 
     @staticmethod
@@ -38,38 +37,16 @@ def get_josa(string: str, josa: str) -> str:
         else:
             raise JosaTypeException
 
-    @staticmethod
-    def get_full_string(string: str, josa: str) -> str:
+    @classmethod
+    def get_full_string(cls, string: str, josa: str) -> str:
         """
         단어 뒤에 조사를 붙여서 반환하는 정적 메서드
         :param string: 입력받는 한글 단어
         :param josa: 체크하고자 하는 조사
         :return: 단어와 조사를 붙인 문자열을 반환
         """
-        if (josa == '을') or (josa == '를'):
-            return string + '을' if Jongsung.has_jongsung(string) else string + '를'
-        elif (josa == '은') or (josa == '는'):
-            return string + '은' if Jongsung.has_jongsung(string) else string + '는'
-        elif (josa == '이') or (josa == '가'):
-            return string + '이' if Jongsung.has_jongsung(string) else string + '가'
-        elif (josa == '과') or (josa == '와'):
-            return string + '과' if Jongsung.has_jongsung(string) else string + '와'
-        elif (josa == '이나') or (josa == '나'):
-            return string + '이나' if Jongsung.has_jongsung(string) else string + '나'
-        elif (josa == '으로') or (josa == '로'):
-            return string + '으로' if Jongsung.has_jongsung(string) else string + '로'
-        elif (josa == '아') or (josa == '야'):
-            return string + '아' if Jongsung.has_jongsung(string) else string + '야'
-        elif (josa == '이랑') or (josa == '랑'):
-            return string + '이랑' if Jongsung.has_jongsung(string) else string + '랑'
-        elif (josa == '이며') or (josa == '며'):
-            return string + '이며' if Jongsung.has_jongsung(string) else string + '며'
-        elif (josa == '이다') or (josa == '다'):
-            return string + '이다' if Jongsung.has_jongsung(string) else string + '다'
-        elif josa == '이가':
-            return string + '이가' if Jongsung.has_jongsung(string) else string + '가'
-        else:
-            raise JosaTypeException
+        return string + cls.get_josa(string, josa)
+
 
 # TODO : Refactor pyjosa's architecture with oop.
 # TODO : need to remove duplicated codes with 'if ... elif...' (refactor)
diff --git a/setup.py b/setup.py
index 96bbcee..eac6c68 100644
--- a/setup.py
+++ b/setup.py
@@ -1,19 +1,19 @@
-from setuptools  import setup,  find_packages
+from setuptools import setup, find_packages
 
 setup(
-    name = 'pyjosa',
-    version = '1.0.2',
-    description = '한국어 조사 처리 패키지',
-    author = 'sehwan.kim',
-    author_email = 'sehwan.kim@ingkle.com',
-    url = 'https://github.com/kimsehwan96/pyjosa',
-    packages = find_packages(exclude=[]),
+    name='pyjosa',
+    version='1.0.3',
+    description='한국어 조사 처리 패키지',
+    author='sehwan.kim',
+    author_email='sehwan.kim@ingkle.com',
+    url='https://github.com/kimsehwan96/pyjosa',
+    packages=find_packages(exclude=[]),
     license='MIT',
     install_requires=[],
     classifiers=[
         'Programming Language :: Python :: 3.7'
     ],
-    package_data = {},
+    package_data={},
     zip_safe=False,
-    keyword = ['pypi', 'korea'],
-)
\ No newline at end of file
+    keyword=['pypi', 'korea'],
+)