“The effect of untreated sewage water on concentration of elements in four olive cultivars in Masalata area”, J. Basic Appl. Sci, vol. 21, no. 1, pp. 96–108, Dec. 2015, Accessed: Aug. 28, 2026. [Online]. Available: https://lafsrj.lafsrj.ly/index.php/JBAS/article/view/205