The Kanada Press, 1953
Buku Teks
Dixit, J. N, author
Konark Publishers, 2005
Buku Teks
edited by Jaydipsinh K. Dodiya and K.V. Surendran
Sarup and Sons, 1999
Buku Teks
Rawlinson, H.G., author
Oxford University Press, 1950
Buku Referensi
Hubbard, L. Ron, 1911-1986, author
Bridge Publications, Inc., 2012
Buku Referensi