Samuels, John M., author
McGraw-Hill, 1989
Buku Teks
McCullers, Levis D., 1936-, author
Melville Publishing Company, 1975
Buku Teks
Spiller, Earl A., author
Homewood, Illinois , Richard D. Irwin
Buku Teks
Baker, Richard E., author
McGraw-Hill, 1996
Buku Teks
Baker, Richard E., author
McGraw-Hill, 1989
Buku Teks