رابط دائم
https://update.library.uitm.edu.my/Record/Yusof%20R.;%20Jumbri%20K.;%20Ahmad%20H.;%20Abdulmalek%20E.;%20Abdul%20Rahman%20M.B.
https://update.library.uitm.edu.my/Record/Yusof%20R.;%20Jumbri%20K.;%20Ahmad%20H.;%20Abdulmalek%20E.;%20Abdul%20Rahman%20M.B.