Hildebrand, David K., 1940-
Duxbury Press, 1991
Buku Teks
Stuart, Alan
Charles Griffin, 1976
Buku Teks
Bartz, Albert E
Macmillan, 1981
Buku Teks
Baker, Judith J.
Jones and Bartlett Publishers, 2011
Buku Teks
Baker, Judith J.
Jones & Bartlet Learning, 2014
Buku Teks