Fakultas Psikologi Universitas Indonesia, 2004
UI - Skripsi (Membership)
Rizano Loekman, author
1986
UI - Skripsi (Membership)
Kusrini, author
Andi, 2007
Buku Teks
Simon, Herbert A., author
Bina Aksara, 1984
Buku Teks
Lindenfield, Gael, author
Gramedia Pustaka Utama, 2003
Buku Teks