Cole, George F., author
Brooks/Cole, 1986
Buku Teks
Alpert, Geoffrey P., author
Sage, 1985
Buku Teks
Davis, Frederick T, author
Cambridge University Press, 2019
eBooks
McNamara, Robert Hartmann, author
McGraw-Hill, 2009
Buku Teks
Adler, Freda
McGraw-Hill, 2007
Multimedia