Hall, Calvin S. (Calvin Springer), 1909-1985, author
John Wiley & Sons, 1978
Buku Teks
edited by H.J. Eysenck
Springer-Verlag, 1981
Buku Teks
Schultz, Duane
D. Van Nostrand Company, 1977
Buku Teks
Larsen, Randy J., author
McGraw-Hill, 2008
Buku Teks
edited by Gregory J. Boyle, Donald H. Saklofske, Gerald Matthews
Academic Press, 2015
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