Bunnin, Brad
Parker Street, 1983
Buku Teks
Weinstein, David A., author
John Wiley & Sons, 1987
Buku Teks
Friedman, Lawrence M., 1930-, author
W.W. Norton, 1984
Buku Teks
Arbetmen, Lee P., author
West Publishing, 1990
Buku Teks
Ross, Martin J., author
A Fawcett Crest Book, 1975
Buku Teks