Harris, James C., author
Oxford University Press, 2006
Buku Teks
Uji Arum Ismartini, author
2001
UI - Skripsi (Membership)
Diana Damayanti H, author
1984
UI - Skripsi (Membership)
Payne, James S., author
Charles Merrill Publishing, 1981
Buku Teks
Suparyono, author
Fakultas Psikologi Universitas Indonesia, 2009
UI - Tesis (Open)