Rai, E. N. Mangat
Center for International Affairs, Harvard University , 1963
Buku Teks
Gandhi, M.K., author
Navajivan Publishing, 1959
Buku Teks
Gandhi, M.K., author
Pustaka Sinar Harapan, 1985
Buku Teks
Prasad, A., author
Konark, 2007
Buku Teks
Commonwealth of Australia, 1987
Buku Teks