Sumo, Carmen T. Phoenix math for the 21st century learners : grade 10 / Carmen T. Sumo [and three others] - Quezon City, Philippines : Phoenix Publishing House, c2015. - viii, 448 pages : illustrations ; 26cm. K to 12 Curriculum Compliant. ISBN: 9789710637232 Subjects--Topical Terms: 1. Mathematics. Dewey Class. No.: Fil. 510 P574 2015