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https://update.library.uitm.edu.my/Record/Jopony%20S.T.M.;%20Ahmad%20F.;%20Osman%20M.K.;%20Idris%20M.;%20Yahaya%20S.Z.;%20Daud%20K.;%20Ismail%20A.P.;%20Ibrahim%20A.H.;%20Soh%20Z.H.C.
https://update.library.uitm.edu.my/Record/Jopony%20S.T.M.;%20Ahmad%20F.;%20Osman%20M.K.;%20Idris%20M.;%20Yahaya%20S.Z.;%20Daud%20K.;%20Ismail%20A.P.;%20Ibrahim%20A.H.;%20Soh%20Z.H.C.