Schlatter, Richard, author
George Allen & Uwin , 1951
Buku Teks
Cerver, Francisco Asensio
Hongkong : Page One Publishing, 1997,
Buku Referensi
Pomeroy, jason, author
ORO editions, 2011
Buku Referensi
edited by Adam Hardy and Necdet Teymur
Tuestion Press, 1996
Buku Teks
Ngo, Dung, author
Thames & Hudson, 2003
Buku Teks