Ray, Sibnarayan
Melbourne and Sydney : Thomas Nelson (Austrakia) Ltd., 1966.
Buku Teks
Burgess, Peter H.
Graham Brash, 1983
Buku Referensi
Yalman, Nur
I. B. Tauris, 2009
Buku Teks
edited by Gun Lauritzson
Lund University, 1992
Buku Referensi
Toynbee, Arnold J.
Oxford University Press, 1958
Buku Teks