Garo, Candelaria D. Theories and principles of educational technology / Candelaria D. Garo. - Mandaluyong City : National Book Store, 2008. - xiii, 109 pages : black and white illustrations ; 23 cm., paperback. Includes references. ISBN: 971086906x Subjects--Topical Terms: Educational technology. Dewey Class. No.: FIL 371.33 G237t 2008