?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Oluwole&rft.aufirst=O.+O.&rft.au=Oluwole%2C+O.+O.&rft.atitle=A+review+of+biotechnological+approaches+towards+crop+improvement+in+African+yam+bean+(Sphenostylis+stenocarpa+Hochst.+Ex+A.+Rich.)&rft.issn=2405-8440&rft.date=2021&rft.title=Heliyon&rft.genre=article