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https://update.library.uitm.edu.my./Record/Hamzah%20S.;%20Teh%20L.K.;%20Siew%20J.S.K.;%20Ahmad%20G.;%20Wong%20H.S.;%20Zakaria%20Z.A.;%20Salleh%20M.Z.
https://update.library.uitm.edu.my./Record/Hamzah%20S.;%20Teh%20L.K.;%20Siew%20J.S.K.;%20Ahmad%20G.;%20Wong%20H.S.;%20Zakaria%20Z.A.;%20Salleh%20M.Z.