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Westview Press, 1992
Buku Teks
Bharatiya Vidya Bhavan, 1963
Buku Teks
Hutton, J.H.
Cambridge University Press , 1946
Buku Teks
Kar, Chintamoni
Alec Tiranti, 1950
Buku Teks
Sewell, R.
Asian Educational Services, 1987
Buku Teks