Yingyi, Situ, author
Sage Publications, 2000
Buku Teks
McNamara, Robert Hartmann, author
McGraw-Hill, 2009
Buku Teks
Adler, Freda
McGraw-Hill, 2007
Multimedia
Adler, Freda, author
McGraw-Hill , 2007
Multimedia
Alpert, Geoffrey P., author
Sage, 1985
Buku Teks