Johnson, David W., 1940-, author
Pearson, 2014
Buku Teks
Johnson, David W., 1940-, author
Pearson, 2017
Buku Teks
ed. by Howard S. Rowland
An Aspen publication , 1984
Buku Referensi
Swansburg, Russell C., author
Jones and Bartlett, 1990
Buku Teks
Aditya Daniswara, author
Fakultas Psikologi Universitas Indonesia, 2012
UI - Skripsi (Open)