?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Rian&rft.aulast=Prasetyo&rft.au=Prasetyo%2C+Rian&rft.pages=115-122&rft.title=E-Jurnal+Pendidikan+Teknik+Mesin&rft.date=April+2015&rft.volume=3&rft.atitle=THE+ANALYSIS+OF+LEARNING+BARRIERS+ON+MECHANICS+TECHNOLOGY+SUBJECT+AT+SMK+NEGERI+3+YOGYAKARTA&rft.issue=2&rft.genre=article