Ali, Ismat, and M Mohsin Ali. “Short Communication Some Studies on the Changes in the Composition of Coal Ash and Bottom/Fly Ash Produced in Atmospheric Fluidized Bed Combustor”. Biological Sciences - PJSIR 49, no. 5 (October 30, 2006): 341–343. Accessed June 7, 2025. http://www.biostaging.pjsir.org/index.php/biological-sciences/article/view/1244.