Kabir, S. (2008). Origin of Opal-CT in Lower Eocene Tallahatta Formation, Mississippi, USA and Pleistocene Barind Clay Formation in Bangladesh: A Comparative Study: Origin of Opal-CT. Biological Sciences - PJSIR, 51(2), 61–64. Retrieved from https://v2.pjsir.org/index.php/biological-sciences/article/view/620