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URL http://www.udru.ac.th/~hmrudru/index.php?view=article&catid=38:2011-02-07-02-34-06&id=595:2017-04-26-09-34-37&tmpl=component&print=1&layout=default&page=&option=com_content&Itemid=69
Event ID 90300017
Event Type signature