Deegan, Craig, author
McGraw-Hill, 2009
Buku Teks
Pattillo, James W., author
Lousiana State University Press , 1965
Buku Teks
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