Khalil, Kamel, Chahid Moustapha, and Abeer Mahfoud. 2018. “Estimation of Total Phenolic Compounds In Olive Leaves As Biomarker For Assessing The Lead Pollution At Banias Area”. Tishreen University Journal -Basic Sciences Series 40 (6). https://journal.tishreen.edu.sy/index.php/bassnc/article/view/5715.