رابط دائم
https://update.library.uitm.edu.my./Record/Ujang%20I.R.M.;%20Hamidi%20N.;%20Hamid%20J.A.;%20Awang%20S.;%20Zulkifli%20N.W.;%20Supadi%20R.;%20Mohamed%20N.E.;%20Sooryanarayana%20R.
https://update.library.uitm.edu.my./Record/Ujang%20I.R.M.;%20Hamidi%20N.;%20Hamid%20J.A.;%20Awang%20S.;%20Zulkifli%20N.W.;%20Supadi%20R.;%20Mohamed%20N.E.;%20Sooryanarayana%20R.