Metz, Michael E., author
Brunner-Routledge, 2011
Buku Teks
Lerner, Harriet Goldhor, author
Harper and Row, 1989
Buku Referensi
Wesmira Parastuti, author
Fakultas Psikologi Universitas Indonesia, 2002
UI - Tesis Membership
Indriyana Djohansjah, author
Fakultas Psikologi Universitas Indonesia, 2006
UI - Tesis Membership
Rif`atul Mahmudah, author
Fakultas Psikologi Universitas Indonesia, 2012
UI - Skripsi Open