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Hasan Mahmud, Md. Arifur Rahman Molla, Md. Mahbubul Haque and Kamrul Hasan
Asian Journal of Information Technology 4 ( 2 ): 172 - 177 , 2005
Kamrul Hasan, Hasan Mahmud, Arifur Rahman Molla, Mahbubul Haque and Aniz Fatema
Asian Journal of Information Technology 4 ( 4 ): 399 - 405 , 2005