Burke, Michelle Marie, Author
American Management Association, 1997
eBooks
Adi Wijaksana, author
Fakultas Psikologi Universitas Indonesia, 1992
UI - Skripsi (Membership)
Kawei...deng ren he zhu... [et.al]
Tian xia wen hua chu ban gu fen you xian gong s, 1995
Buku Teks
Oesch, Daniel, author
Oxford University Press, 2013
Buku Teks
Maryanah, author
Universitas Indonesia, 2004
UI - Tesis (Membership)