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https://update.library.uitm.edu.my./Record/Alam%20S.S.;%20Masukujjaman%20M.;%20Mohamed%20Makhbul%20Z.K.;%20Helmi%20Ali%20M.;%20Ahmad%20I.;%20Al%20Mamun%20A.
https://update.library.uitm.edu.my./Record/Alam%20S.S.;%20Masukujjaman%20M.;%20Mohamed%20Makhbul%20Z.K.;%20Helmi%20Ali%20M.;%20Ahmad%20I.;%20Al%20Mamun%20A.