علي عمران الزرقة و اشتيوي امحمد الجديد و عبدالسلام عبدالحفيظ الفرجاني 2019. Analytical study of the extent to which seawater is contaminated with organic materials from sewage –Sirte city. Journal of Pure & Applied Sciences . 18, 2 (Dec. 2019). DOI:https://doi.org/10.51984/jopas.v18i2.470.