Mohd Asyraf Kassim, Nasrin Abu Bakar, Loh Soh Kheang and Astimar Aziz
Research Journal of Applied Sciences 6 ( 5 ): 310 - 319 , 2011
Mohd Asyraf Kassim, Loh Soh Kheang, Nasrin Abu Bakar, Astimar Abdul Aziz and Rosnah Mat Som
Research Journal of Environmental Sciences 5 ( 6 ): 573 - 586 , 2011