Rees, Yvonne
Page One Publishing, 2002
Buku Referensi
Massachusetts: Rockport Publishers,, 1997
Buku Teks SO
Pile, John F.
H.N. Abrams, 1995
Buku Teks SO
Indecs Publishing, 1990
Buku Referensi
Blitch, Ronald B. ; Coihen, Martin H. ; Gilass, William K. ; Hieart, Lormaine ; Noell, Euince ; Weismen, Gerald ; Cantor, Marwin J.
AIA Press, 1997
Buku Referensi