Unesco. Regional Office for Education in Asia and the Pacific & Asia and the Pacific Programme of Educational Innovation for Development. (1986). Preparing multi-media teaching materials: A source book. Unesco Regional Office for Education in Asia and the Pacific.

Unesco. Regional Office for Education in Asia and the Pacific and Asia and the Pacific Programme of Educational Innovation for Development. Preparing Multi-media Teaching Materials: A Source Book. Bangkok: Unesco Regional Office for Education in Asia and the Pacific, 1986.

Unesco. Regional Office for Education in Asia and the Pacific and Asia and the Pacific Programme of Educational Innovation for Development. Preparing Multi-media Teaching Materials: A Source Book. Unesco Regional Office for Education in Asia and the Pacific, 1986.