Arunava Pradhan, Pranami Bhaumik, Sumana Das, Madhusmita Mishra, Sufia Khanam, Bilqis Amin Hoque, Indranil Mukherjee, Ashoke Ranjan Thakur and Shaon Ray Chaudhuri
American Journal of Environmental Sciences 4 ( 4 ): 406 - 411 , 2008
Journal of Computer Science 4 ( 5 ): 382 - 392 , 2008
Journal of Social Sciences 4 ( 4 ): 308 - 319 , 2008