Nancy Kartika, author
Fakultas Psikologi Universitas Indonesia, 2002
UI - Skripsi Membership
Situmorang, Aprillany, author
Fakultas Psikologi Universitas Indonesia, 2002
UI - Skripsi Membership
Djoko Saptadi, author
Fakultas Psikologi Universitas Indonesia, 2002
UI - Skripsi Membership
Depdikbud., 1985
Buku Teks
Asmaun Sahlan, author
UIN-Maliki Press, 2012
Buku Teks