رابط دائم
https://update.library.uitm.edu.my./Record/Hasan%20K.;%20Othman%20M.M.;%20Meraj%20S.T.;%20Mekhilef%20S.;%20Abidin%20A.F.B.
https://update.library.uitm.edu.my./Record/Hasan%20K.;%20Othman%20M.M.;%20Meraj%20S.T.;%20Mekhilef%20S.;%20Abidin%20A.F.B.