Fakultas Psikologi Universitas Indonesia, 1982
UI - Skripsi (Membership)
Weiss, Donald H.
Binarupa aksara, 1994
Buku Teks
Hadari Nawawi, author
Gadjah Mada University Press, 1993
Buku Teks
Siti Ismah Afwan, author
Fakultas Psikologi Universitas Indonesia, 1995
UI - Tesis (Membership)
Livia Iskandar, author
Fakultas Psikologi Universitas Indonesia, 1994
UI - Skripsi Membership