TY - BOOK AU - SENGUPTA, SHYAMAL AU - GHOSH, ASHOK AU - RAYCHAUDHURI, DEBIPRASAD TI - TATTWIYA PADARTHABIDYAR BHUMIKA ( BEN ) / SN - 812472608 U1 - 530.01 PY - 1996/// CY - KOLKATA PB - PASHCHIMBANGA RAJYA PUSTAK PARSAD KW - PHYSICS N1 - V . 1. 418 P ER -