?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Lee+%2C+Ming+Foong&rft.aulast=Lee+&rft.aufirst=Ming+Foong&rft.date=10+January+2009&rft.title=Designing+A+Visualization+Based+Learning+Approach+For+Learning+Engineering+Drawing+&rft.genre=proceeding