?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=NGUYEN%2C+Kim+Sao&rft.aulast=NGUYEN&rft.aufirst=Kim+Sao&rft.issue=2&rft.volume=36&rft.date=February+2020&rft.issn=1813-9663&rft.atitle=An+effective+reversible+data+hiding+method+based+on+pixel-value-ordering&rft.title=Journal+of+Computer+Science+and+Cybernetics&rft.pages=139-158&rft.genre=article