Goyal, R.P. Unified physics vigyaan : Ekeekrt pathyakramanusar duiteey varsh ke liye bhag-2 (Hindi) - Indore : Shivlal Agarwal and Company, 1999 - xii, 518p. Subjects--Topical Terms: Mechanical--Waves | Electromagnetism | Physics--Optics Dewey Class. No.: 530 GA:Y