Ashar Sunyoto Munandar, author
UI-Press, 2006
Buku Teks
Adams, Linda
Gramedia Pustaka Utama, 1995
Buku Teks
Yunita Astridianingwati, author
2002
UI - Skripsi (Membership)
Artikel Jurnal
Rike Permata Sari, author
Fakultas Psikologi Universitas Indonesia, 1998
UI - Skripsi (Membership)