?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Fatimah&rft.au=Fatimah%2C+Siti&rft.aufirst=Siti&rft.pages=315-321&rft.atitle=Development+of+Students'+Competencies+in+Social+Studies+Learning+by+Using+the+Field+Trip+Method+in+Junior+High+School&rft.date=2019&rft.issn=2352-5398&rft.title=Atlantis+Press&rft.volume=458&rft.genre=article