?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Nguyen%2C+Thac+Huy&rft.aulast=Nguyen&rft.aufirst=Thac+Huy&rft.issue=4&rft.volume=5&rft.date=2016&rft.issn=2010-3743&rft.atitle=Implicit+Feedback+Mechanism+to+Manage+User+Profile+Applied+in+Vietnamese+News+Recommender+System&rft.title=International+Journal+of+Computer+and+Communication+Engineering&rft.pages=276-285&rft.genre=article