?url_ver=Z39.88-2004&rft_id=doi%3A10.54203%2Fjceu.2021.8&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Ojo%2C+Ochuko+M.&rft.aulast=Ojo&rft.aufirst=Ochuko+M.&rft.issue=6&rft.pages=58-64&rft.issn=22520430&rft.atitle=Appraisal+of+Cumulative+Volume+of+Biogas+Produced+from+Water+Hyacinth+and+Selected+Animal+Dungs+Co-Digestion+Mixes&rft.date=25+November+2021&rft.volume=11&rft.title=Journal+of+Civil+Engineering+and+Urbanism&rft.genre=article