LeUnes, Arnold, author
Psychology Press, 2008
Buku Teks
Cox, Richard H., author
McGraw-Hill, 2012
Buku Teks
Cox, Richard H., author
McGraw-Hill, 2007
Buku Teks
edited by Linda K. Bunker, Robert J. Rotella, Ann Relly
McNanghton and Gunn, 1985
Buku Teks
editedby Robert N. Singer, Heather A. Hausenblas and Christopher M. Janelle
Wiley, 2001
Buku Teks