NCERT, . Mathematics : model questions and answers hons. and P.G / NCERT and SCERT. - 12th ed / . - Kolkata : B M Publication , 2012. - Verious pagination : ill.,fig.,table ; 21cm . NULL ISBN: RS190.00 (pbk) Subjects--Index Terms: MATHEMATICS-GUIDE BOOK Dewey Class. No.: 510.76 / NCE/M