Roy, R., Roy, E., Sultana, S. and Kawser, C. 2007. Epidemiology and Clinical characterstics of Children with Persistent Diarrhoea. Journal of Bangladesh College of Physicians and Surgeons. 24, 3 (Jun. 2007), 105–109. DOI:https://doi.org/10.3329/jbcps.v24i3.159.