Hardgrave, Robert L., author
Harcourt College, 2000
Buku Teks
Sharma, Ram Sharan, author
Motilal Banarsidass , 1991
Buku Teks
Singh, Jaswant
Rupa & Co, 2006
Buku Teks
Griffiths, Percival, Sir, 1899-, author
Frederick A. Praeger, 1962
Buku Teks
Griffiths, Percival, Sir, 1899-, author
Ernest Benn, 1958
Buku Teks