Lukas Nurjanto, author
Universitas Indonesia, 1995
UI - Tesis (Membership)
Christina Prahastuti, author
1992
UI - Skripsi (Membership)
Artikel Jurnal
Catherine, author
Fakultas Psikologi Universitas Indonesia, 1999
UI - Skripsi (Membership)
Erita Narhetali, author
2002
UI - Skripsi (Membership)