Geddes-Brown, Leslie
Page One, 2000
Buku Referensi
Dollin, Stuart
The Templar Company, 1992
Buku Referensi
Bloomfield, Harold H.
Ballantine Books , 1983
Buku Teks
Beni Wijaya
Fakultas Teknik Universitas Indonesia, 1997
UI - Skripsi (Membership)
Vandenberg, Maritz
Academy Editions, 1996
Buku Teks