Kerr, Alex, author
Hill and Wang, 2001
Buku Teks
Backman, Michael
John Wiley & Son, 1999
Buku Teks
Paul F. Kjaer, Gunther Teubner, Alberto Febbrajo, editor
Hart, 2011
Buku Teks
edited by Virgil Zeigler-Hill and David K. Marcus
American Psychological Association, 2016
Buku Teks
Gladys Benedicta, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2020
UI - Skripsi (Membership)