NSOU A Guide Book On 6 Combo (Bengali Honuurs) EBG-6, 7, 8 & SPS-2, 3 & AOC-2 BDP 3RD YEAR - (Bengali Version)(Paperback, Bengali, Dr. P. Bhattacharya, Dr. N. S. Adhikari, A. Mukherjee, Dr. Swati Chakraborty)