Budhy Kusworo, author
Universitas Indonesia, 1989
UI - Skripsi (Membership)
Severe, Sal, author
Gramedia Pustaka Utama, 2000
Buku Teks
Hasan Muarif Ambary, author
Logos Wacana Ilmu, 2001
Buku Teks
Marni Lusida, author
Fakultas Psikologi Universitas Indonesia, 2003
UI - Skripsi (Membership)
Juliana Yenni, author
Fakultas Psikologi Universitas Indonesia, 2002
UI - Skripsi (Membership)