00361nam a2200133Ia 4500008004100000020000800041040003000049082001500079100002200094245005600116260003100172300001100203650001300214190302s9999||||xx |||||||||||||| ||und||  c135  aKharagpur College Library  a338.9bDEY  aBiman Chandra Dey  aUnnoyoner Arthoneeti O Prathamik Parisankhyanbiddya  bNew CentralaKolkatac2006  a195 p.  aCommerce