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Journal of Engineering and Applied Sciences 2 ( 12 ): 1743 - 1747 , 2007
N.N. Ehigiamusoe, S.O. Jimoh, J.O. Nordiana, J.O. Igbinoba and U.B. Ehigiamusoe
Journal of Engineering and Applied Sciences 3 ( 3 ): 282 - 289 , 2008
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Research Journal of Applied Sciences 2 ( 11 ): 1116 - 1119 , 2007