Permanent link
https://openaccess.library.uitm.edu.my/Record/ndltd-LABT_ETD-oai-elaba.lt-LT-eLABa-0001-E.02~2013~D_20130910_132617-21074
https://openaccess.library.uitm.edu.my/Record/ndltd-LABT_ETD-oai-elaba.lt-LT-eLABa-0001-E.02~2013~D_20130910_132617-21074