McCarty, F. William
IRWIN, 1990
Buku Teks
Buttler, Henry N.
South-Western Publishing Co., 1987
Buku Teks
Blackburn, John D., author
Richard D. Irwin , 1985
Buku Teks
Hancock, William A., author
McGraw-Hill, 1982
Buku Teks
Lieberman, Jethro K.
Harcourt Brace Jovanovic, 1989
Buku Teks