?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Alabdulkareem%2C+Rashid&rft.aulast=Alabdulkareem&rft.aufirst=Rashid&rft.date=2015&rft.pages=193-200&rft.title=PROCEEDINGS+3rd+REGIONAL+CONFERENCE+ON+EDUCATIONAL+LEADERSHIP+AND+MANAGEMENT&rft.atitle=DIFFERENTIATED+SUPERVISION+MODEL%3A+A+WAY+OF+IMPROVING+SCHOOL+LEADERSHIP+IN+SAUDI+ARABIA&rft.genre=article