1. 1. Sleeman P5 Cobrin T Rockwell DM: Instructional Media and Technology. New York Longman Pub 1979.
2. 2. Falotico JB: Staff development via television. Nurse Educator July-August. 1980.
3. 3. Carpenter T: Video tape and the adult learning process in Sleeman P Rockwell DM feds): Instructional Media and Technology A Professionals Resource. Stroudsburg Pennsylvania Dowden Hutchinson and Ross Inc 1975.
4. 4. Gray D: Planning visual media for self-instruction. J Biolog Photography 1980; 48(3).
5. 5. Estrada E: Educational methodology. JEN. 1980.