Muhibbin Syah, author
Rajawali, 2012
Buku Teks
Crow, Lestar D., author
Nur Cahya, 2005
Buku Teks
Santrock, John W., author
Kencana, 2007
Buku Teks
Amelia Vinayastri, author
2004
UI - Skripsi (Membership)
Ika Rini Lutanida, author
Fakultas Psikologi Universitas Indonesia, 2001
UI - Skripsi (Membership)