رابط دائم
https://update.library.uitm.edu.my/Record/Kee%20L.T.;%20Foo%20J.B.;%20How%20C.W.;%20Azurah%20A.G.N.;%20Chan%20H.H.;%20Yunus%20M.H.M.;%20Ng%20S.N.;%20Ng%20M.H.;%20Law%20J.X.
https://update.library.uitm.edu.my/Record/Kee%20L.T.;%20Foo%20J.B.;%20How%20C.W.;%20Azurah%20A.G.N.;%20Chan%20H.H.;%20Yunus%20M.H.M.;%20Ng%20S.N.;%20Ng%20M.H.;%20Law%20J.X.