Castle, Paul, author
SAGE, 2018
Buku Teks
Santrock, John W., author
McGraw-Hill, 2012
Buku Teks
Coon, Dennis
Wardsworth, 2012
Buku Teks
Nani Widjaja, author
Fakultas Psikologi Universitas Indonesia, 2004
UI - Skripsi (Membership)
Ika Rini Lutanida, author
Fakultas Psikologi Universitas Indonesia, 2001
UI - Skripsi (Membership)