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https://update.library.uitm.edu.my/Record/Kamarulzaman%20N.;%20Subban%20R.H.Y.;%20Ismail%20K.;%20Othman%20N.;%20Basirun%20W.J.;%20Bustam%20M.A.;%20Puad%20S.A.;%20Yusof%20R.;%20Fadzil%20A.F.M.
https://update.library.uitm.edu.my/Record/Kamarulzaman%20N.;%20Subban%20R.H.Y.;%20Ismail%20K.;%20Othman%20N.;%20Basirun%20W.J.;%20Bustam%20M.A.;%20Puad%20S.A.;%20Yusof%20R.;%20Fadzil%20A.F.M.