Sampath, K.. Introduction to educational technology / by K. Sampath, A. Panneerselvam and S. Santhanam. - 2nd rev. 1984 / - New Delhi : Sterling Publishers Private Limited , 1984 - viii, 282p. : ISBN: 81-201-0094-5 Subjects--Topical Terms: Educational technology Dewey Class. No.: T:3(F) / M4;7