MEHROTRA C M. (2001). DISTANCE LEARNING: PRINCIPLE FOR EFFECTIVE EVALUTION. SAGE PUBLICATIONS.
Chicago-čujuhus (17. p.)MEHROTRA C M. DISTANCE LEARNING: PRINCIPLE FOR EFFECTIVE EVALUTION. LONDON: SAGE PUBLICATIONS, 2001.
MLA-čujuhus (9. p.)MEHROTRA C M. DISTANCE LEARNING: PRINCIPLE FOR EFFECTIVE EVALUTION. SAGE PUBLICATIONS, 2001.
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