?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Sari%2C+Yessy+Yanita&rft.aufirst=Yessy+Yanita&rft.aulast=Sari&rft.atitle=Jurnal+Nasional+%22EVALUATION+OF+THE+ROLE+OF+PRINCIPAL+LEADERSHIP+IN+IMPROVING+TEACHER+MOTIVATION%22&rft.issue=1&rft.date=May+2018&rft.issn=2086-2881&rft.title=Jurnal+Kepemimpinan+Pendidikan&rft.volume=1&rft.pages=1-21&rft.genre=article