?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.jmrt.2019.11.072&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=F.&rft.aulast=Usman&rft.au=Usman%2C+F.&rft.date=2020&rft.issn=22387854&rft.title=Journal+of+Materials+Research+and+Technology&rft.atitle=Structural+characterization+and+optical+constants+of+p-toluene+sulfonic+acid+doped+polyaniline+and+its+composites+of+chitosan+and+reduced+graphene-oxide&rft.pages=1468-1476&rft.volume=9&rft.issue=2&rft.genre=article