M.E. Toriman, Nor Rohaizah Binti Jamil, Mushrifah Idris, S.A. Sharifah Mastura, Habibah Ahmad, A.C. Er, Nor Azlina Abdul Aziz, Q.Y. Lee and Rahmah Elfithri
Journal of Engineering and Applied Sciences 7 ( 4 ): 300 - 305 , 2012
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The Social Sciences 6 ( 2 ): 114 - 124 , 2011