NIM:D02399208.
NIM:D02399256.
NIM:D02398263.
NIM:D02399250.
NIM: D02300326. Bibliografi hlm. 74-75.
NIM: D02300023. Bibliografi hlm. 70-71.
NIM: D02300131. Bibliografi hlm. 70.
NIM: D02300222. Bibliografi hlm. 60-62.
The study is inspired by language phenomenon among member of society from various levels of professional, which tend to neglect ethics of politeness during communication process as result of value …
NIM: F0640744. Bibliografi hlm. 107-111.