Dimas Budi Prasetyo
Fakultas Psikologi Universitas Indonesia, 2009
UI - Skripsi (Open)
Affinito, Mona Gustafson
New Harbinger Publications, Inc, 1999
Buku Teks
Enright, Robert D.
APA LifeTools, 2005
Buku Teks
Christiany
2004
UI - Skripsi (Membership)
Christina Suzanna Nitalessy
2004
UI - Skripsi (Membership)