042-37-802-297 042-37-814-140
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042-37-802-297 042-37-814-140
Workring Hours: (9:00 AM to 6:00 PM)
![by Richard E. Mayer,by Ruth C. Clark e-Learning and the Science of Instruction: Proven Guidelines for Consumers and Designers of Multimedia Learning(text only)2nd(Second) edition[Hardcover]2007](https://m.media-amazon.com/images/I/51+z-9MlI-L.jpg "by Richard E. Mayer,by Ruth C. Clark e-Learning and the Science of Instruction: Proven Guidelines for Consumers and Designers of Multimedia Learning(text only)2nd(Second) edition[Hardcover]2007")
