Permanent link
https://openaccess.library.uitm.edu.my/Record/ndltd-LABT_ETD-oai-elaba.lt-LT-eLABa-0001-E.02~2012~D_20120613_122052-44748
https://openaccess.library.uitm.edu.my/Record/ndltd-LABT_ETD-oai-elaba.lt-LT-eLABa-0001-E.02~2012~D_20120613_122052-44748