edited by W. Gerrod Parrott
Psychology Press, 2001
Buku Teks
TenHouten, Warren D.
Routledge, 2009
Buku Teks
Gray, Benjamin
[Springer, ], 2012
eBooks
Moore, Wilbert E. (Wilbert Ellis)
Prentice-Hall, 1967
Buku Teks
edited by Emrys Jones
Oxford University Press, 1975
Buku Teks