?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Abdullah+Mohd+Zin%2C+&rft.aulast=Abdullah+Mohd+Zin&rft.date=5+November+2006&rft.title=Student+modeling+for+learning+of+object-oriented+programming+in+e-learning+environment+&rft.genre=proceeding