Allen, David, author
Crest Publishing House, 2002
Buku Teks
by Walter J. Wadsworth
Gemini Books, 2000
Buku Referensi
by David F. Folino
Gemini Books, 2000
Buku Referensi
by Len D'Innocenzo and Jack Cullen
Gemini Books, 2000
Buku Referensi
by Jeff Olson
Gemini Books, 2000
Buku Referensi