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Methods and Tools for Increasing the Effectiveness of E-Learning

Written By

Donika Valcheva and Margarita Todorova

Submitted: March 1st, 2011 Published: February 3rd, 2012

DOI: 10.5772/28615

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Written By

Donika Valcheva and Margarita Todorova

Submitted: March 1st, 2011 Published: February 3rd, 2012