?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Ridho&rft.au=Muhammad+Akbar%2C+Ridho&rft.aulast=Muhammad+Akbar&rft.degree=S1&rft.date=2012&rft.title=The+Influence+of+Environment+to+Students%E2%80%99+Motivation+and+The+Effect+to+Student+Achievement+Grade+Audio+Video+Department+SMK+Muh.+Kutowinangun+Kebumen&rft.inst=UNIVERSITAS+NEGERI+YOGYAKARTA