Gaya APA

Swanson, C, P., D.M., I, C, T, C, I, R. (NULL). Instructional media and technology a guide accountable learning systems . New: New York: Longman; 1979.

Gaya MLA

Swanson, Carl, P.., D.M., I., Cobun,, Ted, C, II., Rockwell,. "Instructional media and technology a guide accountable learning systems". New: New York: Longman; 1979, NULL. Text.