Donnell, John D., author
Richard D. Irwin, 1983
Buku Teks
Martin, Teodorico C.
Central Book Supply, inc., 1962
Buku Teks
Nolledo, Jose N.
National Book Store, 1967
Buku Teks
White, James J., author
St. Paul Minn, 1988
Buku Teks
White, James J., author
West Publishing, 1972
Buku Teks