?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Wei+Wen+Shyang%2C+&rft.aulast=Wei+Wen+Shyang&rft.date=2005&rft.title=Teaching+engineering+programmes+via+open+and+distance+learning+%3A+the+perceptions+and+challenges&rft.genre=proceeding