Dayal, Surendra, author
Butterworth, 1996
Buku Teks
Butterworth, 1988
Buku Teks
Patton, William E., author
South-Western, 1992
Buku Teks
edited by R. Lewis and ED Tagg
Blackwell, 1987
Buku Teks
Distributed by Almqvist & Wiksell International, 1974
Buku Teks