research.unived.ac.id fileisbn 978-602-61039-0'1 prosiding seminar nasional komunlkasl...
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- research.unived.ac.id fileISBN 978-602-61039-0'1 PROSIDING SEMINAR NASIONAL kOMUNlKASl 'innovation Educational Technologies and Applications Medan, 11-12 Februari 2017
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