رابط دائم
https://update.library.uitm.edu.my./Record/Ahmad%20W.;%20Sethupathi%20S.;%20Kanadasan%20G.;%20Lau%20L.C.;%20Kanthasamy%20R.
https://update.library.uitm.edu.my./Record/Ahmad%20W.;%20Sethupathi%20S.;%20Kanadasan%20G.;%20Lau%20L.C.;%20Kanthasamy%20R.