Tambunan, Emil H., author
Indonesia Publishing House, 2009
Buku Teks
Edell, Ron
Kensington publishing Corp., 1983
Buku Teks
Rina Puspitasari, author
2015
UI - Tesis (Membership)
Umaira Fotineri, author
Fakultas Psikologi Universitas Indonesia, 2013
UI - Skripsi Membership
Kiki Sakinatul Fuad, author
Program Pascasarjana Universitas Indonesia, 2005
UI - Tesis (Membership)