Coon, Dennis
Wardsworth, 2012
Buku Teks
Brannigan, Gary G., author
Prentice-Hall, 2000
Buku Teks
Myers, David G., author
Worth Publishers, 2001
Buku Teks
Roddy, Dennis, author
Pergamon Press, 1978
Buku Teks
Deese, James, author
McGraw-Hill, 1967
Buku Teks