Rahnema, Ali, author
I.B.Tauris, 1998
Buku Teks
Legge, John D., author
Allen Lane The Penguin Press, 1972
Buku Teks
Brecher, Michael
Oxford University Press, 1959
Buku Teks
Legge, John D., author
Penguin Books, 1973
Buku Teks
Crisp, L. F. (Leslie Finlay), author
Angus & Robertson , 1963
Buku Teks