Routledge, 2018
Buku Teks
Myers, David G., author
McGraw-Hill, 1994
Buku Teks
Regoli, Robert M., author
Jones and Bartlett Publishers, 2010
Buku Teks
Myers, David G., author
McGraw-Hill, 2013
Buku Teks
Flanders, Frank B., author
Delmar Cengage Learning, 2012
Buku Teks