Mazumdar, Ajanta Introduction to commercial arithmetic and elements of statistics: for HS 2nd year / by Ajanta Mazumdar and Runjun Phookun - 2nd rev. ed. - New Delhi: S chand, 2010 - 412+4p. ISBN: 8121927617 Subjects--Topical Terms: Mathematics Dewey Class. No.: 513 / MAZ