Michael Worek, editor
Firefly Books Ltd., 2008
Buku Teks
Brownlee, George G., 1942-
Cambridge University Press, 2014
Buku Teks
World Scientific, 2014
Buku Teks
Bagchi, Asoke K.
Toppan Company, 1988
Buku Referensi
New Delhi Encyclopaedia Britannica 2001
Buku Referensi