Ahmed*, Wolela. “EFFECTS OF HEAT-FLOW AND HYDROTHERMAL FLUIDS FROM VOLCANIC INTRUSIONS ON AUTHIGENIC MINERALIZATION IN SANDSTONE FORMATIONS”. Bulletin of the Chemical Society of Ethiopia 16, no. 1 (January 1, 2002): 37–52. Accessed August 12, 2026. https://www.ajol.info/index.php/bcse/article/view/20947.