?url_ver=Z39.88-2004&rft_id=doi%3A10.54203%2Fjems.2023.1&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Msuya%2C+Lucyjoyce+C.&rft.aulast=Msuya&rft.aufirst=Lucyjoyce+C.&rft.volume=13&rft.title=Journal+of+Educational+and+Management+Studies&rft.atitle=The+effect+of+heads+of+schools%E2%80%99+supervisory+practices+on+learning+achievement+in+public+secondary+schools+in+Ubungo+municipality%2C+Tanzania&rft.date=25+March+2023&rft.issue=1&rft.pages=1-13&rft.issn=23224770&rft.genre=article