Mondy, R. Wayne, author
Prentice-Hall, 2010
Buku Teks
Werther, William B., author
McGraw-Hill , 1989
Buku Teks
Werther, William B., author
McGraw-Hill, 1996
Buku Teks
Werther, William B., author
McGraw-Hill, 1986
Buku Teks
Proehl, Rebecca Ann, author
Sage, 2001
Buku Teks