Assessment of Bacteriological Quality of Drinking Water in Some Primary and Secondary Schools in Mukalla City-Hadhramout/Yemen. HADHRAMOUT JOURNAL OF MEDICAL SCIENCES. 2023;16(2). تاريخ الوصول يوليو 29, 2026. https://hu.edu.ye/hu-publications/journals/index.php/hujnas/article/view/116