Lindsay, James F.
Beavevton Matrix Publishers 1987,
Buku Referensi
Syngress, 2013
eBooks
Universitas Indonesia, 2000
UI - Disertasi (Membership)
Snustad, D. Peter, 1940-
Jonh Wiley & Sons, 2012
Buku Teks
Weaver, Robert F.
W.C. Brown, 1989
Buku Referensi