Wortman, Camille B., author
McGraw-Hill, 1992
Buku Teks
Rathus, Spencer A., author
Harcourt Brace College, 1993
Buku Teks
Wortman, Camille B., author
McGraw-Hill, 1999
Buku Teks
Kim Uichol [et.all.]
Springer, 2006
Buku Teks
Dipboye, Robert L., author
Harcourt Brace College, 1994
Buku Teks