Luna, Josephine M. Skill builders for English proficiency / Josephine M. Luna, Elineth Elizabeth L. Suarez, Evelyn S. Salazar. - Quezon City : Phoenix Publishing House, Inc., 2014. - xii, 412 pages : illustration ; 25 centimeter. Bibliography: pages 404-412. ISBN: 9789710634507 Subjects--Topical Terms: English language. Dewey Class. No.: FIL 420 L97s 2014