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eBooks
Hall, Bradfgord J, author
Thomsonm, 2005
Buku Teks
Yusuf Arianto, author
Fakultas Psikologi Universitas Indonesia, 2013
UI - Tesis (Membership)
Guy, Vincent
Tian Xia Wen Hua, 1992.
Buku Teks
Anathalia, author
Fakultas Teknik Universitas Indonesia, 2013
UI - Skripsi (Membership)