Artikel Jurnal
Universitas Indonesia, 2006
UI - Skripsi (Membership)
DePorter, Bobbi, author
Buku Teks
Sri Supriyantini, author
Fakultas Psikologi Universitas Indonesia, 2005
UI - Tesis Membership
Sri Tiatri, author
Fakultas Psikologi Universitas Indonesia, 2001
UI - Tesis (Membership)