?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Jumardi&rft.au=Jumardi%2C+Jumardi&rft.aulast=Jumardi&rft.date=June+2923&rft.issue=2&rft.atitle=The+Efficiency+of+Application+of+Social+Media+in+History+Learning+at+Junior+High+School&rft.volume=15&rft.title=Al-Ishlah%3A+Jurnal+Pendidikan&rft.issn=%3A+2087-9490&rft.pages=.+2250-2257&rft.genre=article