Rezky Utari, author
2015
UI - Skripsi (Membership)
Smith, Huston, author
Serat Alam Media, 2015
Buku Teks
Ichtijanto, author
Departemen Agama RI, 1999
Buku Teks
Novita, author
2002
UI - Skripsi (Membership)
Mia Adiantini, author
Fakultas Psikologi Universitas Indonesia, 2008
UI - Tesis (Open)