Guptu, Sulekh Chandra
New York, N.Y, Asia Publ. House
Buku Teks
Springer, 2012
eBooks
Chandra, Bipan
National Council of Educational Research and Training, 1971
Buku Teks
Dean, Vera Micheles
Rinehart and Winston, 1961
Buku Teks
Banerjee, Anil Chandra
Macmillan, 1978
Buku Teks