Weber, Ron
McGraw-Hill International Book Company, 1982
Buku Teks
Burch, John G.
John Wiley & Sons, 1978
Buku Teks
Akmal
Erlangga, 2010
Buku Teks
Tower, Ralph B.
Prentice-Hall, 1991
Buku Teks
Boutell, Wayne S.
University of California Press , 1966
Buku Teks