?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Nurhizam+Safie+Mohd+Satar%2C+&rft.aulast=Nurhizam+Safie+Mohd+Satar&rft.date=October+2007&rft.title=An+evaluation+of+cultural+roles+and+usability+attributes+in+learning+management+system&rft.genre=proceeding