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	1.		Image from Amazon.com	E-collaborative knowledge construction [electronic resource] : learning from computer-supported and virtual environments / [edited by] Bernhard Ertl. by Ertl, Bernhard, 1973- IGI eBooks IGI Global Publication details: Hershey, Pa. : IGI Global (701 E. Chocolate Avenue, Hershey, Pennsylvania, 17033, USA), c2010 Online resources: Click here to access online Availability: No items available. Place hold Save to lists Add to cart (remove)
	2.		Image from Amazon.com	Technologies and practices for constructing knowledge in online environments [electronic resource] : advancements in learning / [edited by] Bernhard Ertl. by Ertl, Bernhard, 1973- IGI eBooks IGI Global Publication details: Hershey, Pa. : IGI Global (701 E. Chocolate Avenue, Hershey, Pennsylvania, 17033, USA), c2010 Online resources: Click here to access online Availability: No items available. Place hold Save to lists Add to cart (remove)

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