Thomson, Stephen
Prentice-Hall, 1989
Buku Teks
Sienko, Michell J., author
McGraw-Hill, 1984
Buku Teks
Ouellette, Robert J., author
Macmillan, 1983
Buku Teks
Greco, Thomas G., author
Pearson Prentice Hall, 2007
Buku Teks
Rasanayagam, L.J., author
Federal Publications, 1993
Buku Teks