Gatmaitan-Borjal, Wilhelmina Educational technology 1: An introduction to the principles, theories and techno-pedagogical skills in education/ Wilhelmina Gatmaitan-Borjal - Makati City: Katha Publishing Co.,Inc., c2013. - 145 pages: illustration; 25.5 cm. Includes bibliographical references. ISBN: 9789715742108 Subjects--Topical Terms: Educational technology. Dewey Class. No.: DFil 371.33 / G22e