Levy, Y. (2006). Assessing the value of e-learning systems. Information Science Pub.
Chicago Style aipamenaLevy, Yair. Assessing the Value of E-learning Systems. Hershey: Information Science Pub, 2006.
MLA aipamenaLevy, Yair. Assessing the Value of E-learning Systems. Information Science Pub, 2006.
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