Ebbing, Darrel D., author
Houghton Mifflin, 1984
Buku Teks
Paul, Martin A., author
Harcourt, Brace & World, 1967
Buku Teks
Murov, Steven L., author
Thomson, Brooks/Cole, 2007
Buku Teks
Brady, James E., author
John Wiley & Sons, 1978
Buku Teks
Sousa, John J., author
Rhode Island Consortium, 1990
Buku Teks