سمية محمد سعد و محمد مفتاح الصنباني 2019. Diagnosis of algae present in the concrete basins and their relationship to saturation food for some farm area Fezzan (south of Libya). Journal of Pure & Applied Sciences . 18, 3 (May 2019). DOI:https://doi.org/10.51984/jopas.v18i3.236.