Antonius Thomas, author
Fakultas Psikologi Universitas Indonesia, 1995
UI - Skripsi Membership
M. Novita Widyawati, author
Fakultas Psikologi Universitas Indonesia, 1998
UI - Skripsi Membership
Hutagalung, Johanna, author
Fakultas Psikologi Universitas Indonesia, 2000
UI - Skripsi Membership
Meitriani Dian Utami, author
1993
UI - Skripsi (Membership)
Jewell, L.N., author
Arcan, 1998
Buku Teks