Kumar, K.L.  <br/><br/>Educational technology :  a practical textbook for students, teachers, professionals and trainers / K.L. Kumar  -- New Delhi, India:  New Age International Ltd.,  1997.  <br/>x, 337, p.:  ill.;  24 cm.   <br/><br/> Includes bibliographical references.  <br/><br/><label>ISBN: </label>9788122408331 <br/><br/><label>Subjects--Topical Terms: </label><br/>Education -- Audio-visual aids. <br/>Educational technology. <br/>Teaching -- Aids and devices. <br/><br/><label>Dewey Class. No.: </label>Res 371.33 K960 1997