رابط دائم
https://update.library.uitm.edu.my/Record/Sufian%20A.S.;%20Ramasamy%20K.;%20Ahmat%20N.;%20Zakaria%20Z.A.;%20Yusof%20M.I.M.
https://update.library.uitm.edu.my/Record/Sufian%20A.S.;%20Ramasamy%20K.;%20Ahmat%20N.;%20Zakaria%20Z.A.;%20Yusof%20M.I.M.