, . A complete guide book and answer manual for West Bengal School Service Commission test examination 2006 : mathematics / B M Publication. - 6th ed / . - Kolkata : B M Publication , 2006. - verious pagging : ills.,figs.,charts ; 22cm 1 CD . NULL ISBN: RS120.00 (Pb) Subjects--Index Terms: SSC Dewey Class. No.: 510 / BM/C