G.C. Anyanwu, and OHAERI EVANGELINA. O. “MINERALOGICAL AND CHEMICAL COMPOSITION EVALUATION OF LIGNITE COAL FROM IHIOMA ORLU, IMO STATE OF NIGERIA.”. IJRDO-Journal of Applied Science 8, no. 4 (April 18, 2022): 7-13. Accessed December 28, 2024. http://cpcalendars.ijrdo.org/index.php/as/article/view/5008.