Severin, Werner J.
Communications theories
Longman, 1991
 Buku Teks
Hall, Calvin Springer, 1909-1985
Theories of personality
John Wiley & Sons, 1998
 Buku Teks
Hall, Calvin Springer, 1909-1985
Theories of personality
John Wiley & Sons, 1997
 Buku Teks
Hjelle, Larry A.
Personality theories
McGraw-Hill, 1992
 Buku Teks
Hall, Calvin Springer, 1909-1985
Theories of Personality
John Wiley & Sons, 1978
 Buku Teks