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https://update.library.uitm.edu.my./Record/Saheed%20I.O.;%20Ying%20L.R.;%20Yaacob%20S.F.F.S.;%20Hanafiah%20M.A.K.M.;%20Latip%20A.F.A.;%20Suah%20F.B.M.
https://update.library.uitm.edu.my./Record/Saheed%20I.O.;%20Ying%20L.R.;%20Yaacob%20S.F.F.S.;%20Hanafiah%20M.A.K.M.;%20Latip%20A.F.A.;%20Suah%20F.B.M.