Rao, B. V.
terling Publishers Private, 1984
Buku Teks
Juvaini, Ala-ad-Din Ata-Malik, author
Manchester University Press, 1958
Buku Teks
Bakan, Michael B., author
McGraw-Hill, 2012
Buku Teks
Dorling Kindersley, 1998
Multimedia
Hewitt, James, author
Wayland, 1979
Buku Teks