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Usability Issues of e-Learning Systems Case-Study forที่มา : Miroslav Minović, Velimir Štavljanin, Miloš Milovanović, and Dušan Starčević
Belgrade University, Faculty of Organizational Sciences, Jove Ilica 154, Belgrade, Serbia {mminovic,velimirs,milovanovicm,starcev}@fon.bg.ac.yu ที่มา :
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