edited by Donna A. Champeau, Rebecca J. Donatelle, Julie A. Reeder
Pearson Custom Publishing, 2002
Buku Teks
edited by Charles W. Kegley and Eugene R. Wittkopf
McGraw-Hill, 1992
Buku Teks
edited by Charles W. Kegley and Eugene R. Wittkopf
Random House, 1984
Buku Teks
Weihrich, Heinz, author
McGraw-Hill, 1993
Buku Teks
Newmeyer, Frederick J.
Routledge, 1996
Buku Teks