Guiltinan, Joseph P.
McGraw-Hill , 1982
Buku Teks
Heizer, Jay, author
Prentice-Hal, 1996
Buku Teks
Pigors, Paul, author
McGraw-Hill , 1969
Buku Teks
Redwood, Stephen, author
John Wiley & Sons, 1999
Buku Teks
Badawy, Michael K.
Van Nostrand Reinhold, ,1995
Buku Teks