“Environmental Impacts of Unutilised Fly Ash and Its Potential Utilisation for Soil Productivity and Food Security”. Oikos: The Zimbabwe Ezekiel Guti University Bulletin of Ecology, Science Technology, Agriculture, Food Systems Review and Advancement, vol. 1, no. 1 and 2, Oct. 2024, http://journals.zegu.ac.zw/index.php/o/article/view/116.