?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Rio+Sumarni+%2C+Shariffudin&rft.aulast=Rio+Sumarni+&rft.aufirst=Shariffudin&rft.date=2006&rft.atitle=E-Engineering+Drawing+%3A+a+web+based+system+for+teaching+and+learning+engineering+drawing+for+upper+secondary+school&rft.title=Institute+of+Quality%2C+Research+and+Innovation&rft.genre=article