Miltenberger, Raymond G., author
Cengage Learning, 2016
Buku Teks
Sarafino, Edward P., 1940-, author
Wiley, 2012
Buku Teks
Lawler III, Edward E.
John Wiley & Sons, 1980
Buku Teks
Praeger , 1991
Buku Teks
Kazdin, Alan E., author
Dorsey Press, 1980
Buku Teks