Benson, Rowland S., author
Pergemon Press, 1977
Buku Teks
Haberman, William L., 1922-, author
Boston: Allyn and Bacon, 1980
Buku Teks
Holman, J.P. (Jack Philip), author
McGraw-Hill, 1980
Buku Teks
Merle C. Potter, author
McGraw-Hill, 2006
Buku Teks
Reynolds, William C., author
McGraw-Hill, 1968
Buku Teks