Sternberg, Robert J., author
Cambridge University Press, 2003
Buku Teks
Szuchman, Lenore T., author
Wadsworth, 2014
Buku Teks
O`Shea, Robert P. (Robert Paul), 1953-, author
Harcourt Brace Jovanovich, 1993
Buku Teks
O`Shea, Robert P. (Robert Paul), 1953-, author
Harcourt Brace & Company, 1996
Buku Teks
Dunn, Dana S., author
Longman, 2011
Buku Teks