Seasonal Assessment of (Escherichia coli) Contamination Resulting from Untreated Wastewater in Marine Ecosystems of Al-Mukalla and Broom Mayfa, Hadhramout, Yemen . HADHRAMOUT JOURNAL OF MEDICAL SCIENCES. 2026;23(1). تاريخ الوصول سبتمبر 30, 2026. https://hu.edu.ye/hu-publications/journals/index.php/hujnas/article/view/979