Sen, . Pure Science,Physics,Mathematics : brilliant Guide to W.B. School Service Commission Examination 2008 / Sen & Sharma. - 6th ed / . - Kolkata : Benu Prakashani , 2008. - xvi, 740p. (In various pagings) : illus. ; 22cm . Note book of SSC NULL ISBN: RS150.00 (Pb) Subjects--Index Terms: PURE SCIENCE 2. PHYSICS 3. MATHEMATICS Dewey Class. No.: 530.76 / SEN/P