Christina Suzanna Nitalessy, author
2004
UI - Skripsi Membership
Christiany, author
2004
UI - Skripsi Membership
Faiza Ratna Umaro, author
2015
UI - Skripsi Membership
Affinito, Mona Gustafson
New Harbinger Publications, Inc, 1999
Buku Teks
Dimas Budi Prasetyo, author
Fakultas Psikologi Universitas Indonesia, 2009
UI - Skripsi Open