Capron, H.L., author
The Benjamin / Cumming Publishing Company Inc., 1989
Buku Teks
White, Ron, author
Ziff-Davis Press, 1993
Buku Teks
Libes, Sol
Osborne/McGraw-Hil, 1981
Buku Teks
Dasaad Mustafa, author
Fakultas Teknik Universitas Indonesia, 1990
UI - Tesis (Membership)
Long, Larry E., author
Prentice-Hall, 1992
Buku Referensi