Rita Markus Idulfilastri, author
Fakultas Psikologi Universitas Indonesia, 2012
UI - Disertasi (Membership)
Cossman, Joe
Prenhallindo , 1997
Buku Teks
Hansen, Mark Victor, author
Gramedia Pustaka Utama, 2006
Buku Teks
Darling, Diane, author
Media Global Edukasi, 2005
Buku Teks
Maxwell, John C., author
Harvest Publication House, 1997
Buku Teks