Acero, Victorina C. D. O. Principles of teaching I/ Victorina C.D.O Acero - Manila : Rex Book Store, c2015. - xiv, 231 pages : illustrations ; 26 cm. Includes bibliographical references and index. ISBN: 9789712371219 Subjects--Topical Terms: 1. Teaching. Dewey Class. No.: Fil. 371.102 A173p 2015