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 [انترنت]. 30 سبتمبر، 2026 [وثق 30 سبتمبر، 2026];23(1). موجود في: https://hu.edu.ye/hu-publications/journals/index.php/hujnas/article/view/979