Severin, Werner J.
Communications theories
Longman, 1991
 Buku Teks
Feist, Jess
Theories of personality
McGraw-Hill, 2009
 Buku Teks
Hall, Calvin Springer, 1909-1985
Theories of personality
John Wiley & Sons, 1997
 Buku Teks
Hilgard, Ernest R. (Ernest Ropiequet), 1904-2001
Theories of learning
Prentice-Hall, 1975
 Buku Teks
Hall, Calvin Springer, 1909-1985
Theories of Personality
John Wiley & Sons, 1978
 Buku Teks