Holt, Jack A., author
Irwin, 1990
Buku Teks
Stultz, Russell A., author
Wordware Publ, 1992
Buku Teks
Andersen, Dick, author
Erlangga, 1986
Buku Teks
Nitz, Lawrence H.
Prentice-Hall, 1985
Buku Teks
Holt, Jack A., author
Richard D. Irwin , 1990
Buku Teks