Permanent link
https://openaccess.library.uitm.edu.my/Record/ndltd-LABT_ETD-oai-elaba.lt-LT-eLABa-0001-E.02~2008~D_20080929_124246-04259
https://openaccess.library.uitm.edu.my/Record/ndltd-LABT_ETD-oai-elaba.lt-LT-eLABa-0001-E.02~2008~D_20080929_124246-04259