Yousif Ghazal, R. and Mahmood Fathy, D. 2021. Preparation of Ruthenium chloride-grafted Zeolite from a Clay Mineral Ore and Studying Their Catalytic Properties. Journal of Education and Science. 30, 5 (Dec. 2021), 103–113. DOI:https://doi.org/10.33899/edusj.2021.130894.1178.