Santiago, Karen S. ELTS: physical science / Karen S. Santiago and Angelina A. Silverio; John Donnie A. Ramos, coordinator. - Quezon City : Phoenix Publishing House, Inc., 2016. - ix, 278 pages: mostly colored, illustrations 25 cm Includes glossary, bibliography, and index. English ISBN: 9789710638918 Subjects--Topical Terms: Physical science LC Class. No.: 530 Sa59e 2016