Permanent link
https://openaccess.library.uitm.edu.my/Record/ndltd-netd.ac.za-oai-union.ndltd.org-ufs-oai-etd.uovs.ac.za-etd-07182013-103342
https://openaccess.library.uitm.edu.my/Record/ndltd-netd.ac.za-oai-union.ndltd.org-ufs-oai-etd.uovs.ac.za-etd-07182013-103342