Gelernter, Mark, author
Manchester University Press, 2001
Buku Teks
Rawlison, H.G.
Frederick A Praeger, 1952
Buku Teks
Fitzgerald, C.P.
Frederick A. Praeger Publishers, 1961
Buku Teks
Chudal, Alaka Atreya, author
Oxford University Press, 2016
eBooks
Cambridge University Press, 1988
Buku Teks