Adkinson, Leon
McGraw-Hill, 1973
Buku Teks
Long, Larry E., author
Prentice-Hill, 1984
Buku Teks
Martin, James, author
Prentice-Hall, 1990
Buku Teks
Mandell, Steven L., author
West Publishing Company, 1982
Buku Referensi
Mandell, Steven L., author
West Publishing Company, 1982
Buku Teks