Escaner, Jose Maria L., Spiral math 9 / Jose Maria L. Escaner, Mary Ann D. Espino and Dolores L. Catalla. - Quezon City: Trinitas Publishing, Inc. , 2014. - vii, 276 pages : colored illustrations, figures and numbers, and graphs; 25 cm. - . includes bibliography, acknowledgments and index. " Young Adult English ISBN: 9789714210608 Subjects--Topical Terms: Mathematics for secondary education. Math. Dewey Class. No.: 510 / E743s