Gaya APA

Plomp, T., P.Ely, D. (1996). Pend. Umum.International Encyclopedia of Educational Technology (Second Edition). Cambridge Massachusetts: Library of Congress Catalogin in Publication Data.

Gaya MLA

Plomp, Tjeerd., P.Ely, Donald. "Pend. Umum.International Encyclopedia of Educational Technology". Second Edition Cambridge Massachusetts: Library of Congress Catalogin in Publication Data, 1996. Text.