Litong, Domingo J. , Contemporary math high school: second year / Domingo J. Litong and Antonio A. Casupang. - Makati City: Salesiana Publishers, Inc., 2000. - viii, 275 pages: illustrations, figures, tables; 25 cm. includes glossary. English. ISBN: 9715225160 Subjects--Topical Terms: Dewey Class. No.: 510 / L71c