A. J. M. Al Shemmari and A. M. S. Alsudany, “Environmental Performance Evaluation According To The Criteria Of The Environmental Sustainability Prize For The Emirate Of Ras Al Khaimah-A Case Study In The Babel Municipalities Directorate”, Tikrit J. Admin. Econ. Sci., vol. 16, no. 52, 1, pp. 360–381, Dec. 2020.