Walls, Jeannette, author
Serambi Ilmu Semesta, 2013
Buku Teks
Yati Mulyati, author
2010
UI - Skripsi (Membership)
Meitriani Dian Utami, author
1993
UI - Skripsi (Membership)
Fakultas Psikologi Universitas Indonesia, 2010
UI - Tesis (Membership)
Abdul Kadim Masaong
Alfabeta, 2011
Buku Teks