Menon, V. P.
Macmillan, 1956
Buku Teks
Iyer, Venkat, author
Butterworth India, 2000
Buku Teks
Foreign languages press, 1962
Buku Teks
Johnson, J., author
Allical Publishers Private , 1963
Buku Teks
Rankin, RT Hon Sir George Claus
At The University Press, 1946
Buku Teks