Dah Chung Priating, 1963
Buku Teks
Back, Kurt W., author
John Wiley & Sons, 1977
Buku Teks
edited by Robert Levine, Aroldo Rodrigues
Psychology Press, Taylor & Francis Group, 2008
Buku Teks
Hirschhorm, Larry
Jossey Bass, 1983
Buku Teks
Juniator Tulius, author
University of Indonesia, Faculty of Humanities, 2014
Artikel Jurnal