A. Buker, R., R., M. Ramadhan, O., O., Kh. Al-Rashidi, M. and M. (2013) “Application of Iraqi Natural Rich-Bauxite Mineral Clays doped with Chromium Oxides in Upgrading of Iraqi Kerosene”, Journal of Education and Science (JES), 26(4), pp. 21–28. doi: 10.33899/edusj.2013.89979.