Sheley, Joseph F., author
Wadsworth, 1987
Buku Teks
Adler, Freda
McGraw-Hill, 2007
Multimedia
Adler, Freda, author
McGraw-Hill , 2007
Multimedia
Adler, Freda
McGraw-Hill, 2007
Multimedia
Regoli, Robert M., author
Jones and Bartlett Publishers, 2010
Buku Teks