Ahmat Dartono, author
Fakultas Psikologi Universitas Indonesia, 2003
UI - Skripsi Membership
Sumaryadi, author
Fakultas Psikologi Universitas Indonesia, 2004
UI - Skripsi Membership
Hairil Susanto, author
2003
UI - Skripsi (Membership)
Sarahmatun Kusminarin, author
Fakultas Psikologi Universitas Indonesia, 2004
UI - Skripsi Membership
Blonna, Rochard, author
McGraw-Hill, 2012
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