Rahman, M., Rahman, M. and Asaduzzaman, M. 2013. The Aggression of Human Activities on Chalanbeel a Threat on Wetland Environment: Study on Natore - Rajshahi Region of Bangladesh. Journal of Science Foundation. 8, 1-2 (Apr. 2013), 151–159. DOI:https://doi.org/10.3329/jsf.v8i1-2.14638.