1. What training institutions should know about visual designers;Abed;Educational Technology,1989
2. Visual cueing strategies: pictorial, textual, and combinational effects;Beck;Educational Communication and Technology Journal,1984
3. Using extended captions to improve learning from instructional illustrations;Bernard;British Journal of Educational Technology,1990
4. Successful instructional methods: A cognitive information processing approach;Bovy;Educational Communication and Technology Journal,1981