パーマネントリンク
https://update.library.uitm.edu.my./Record/Zulkafli%20A.H.;%20Hassan%20H.;%20Ahmad%20M.A.;%20Mohd%20Din%20A.T.;%20Wasli%20S.M.
https://update.library.uitm.edu.my./Record/Zulkafli%20A.H.;%20Hassan%20H.;%20Ahmad%20M.A.;%20Mohd%20Din%20A.T.;%20Wasli%20S.M.