DeCoster, Don T., author
Melville Publishing Company, 1974
Buku Teks
Shillinglaw, Gordon, author
Richard D. Irwin, 1982
Buku Teks
Moore, Carl L., author
South-Western Publishing, 1976
Buku Teks
Moore, Carl L., author
South-Western Publishing, 1984
Buku Teks
Shank, John K.
Irwin, 1989
Buku Teks