Al-Azzawi, Abdulkareem J. 2015. “The Antibacterial Effect of Herbal Alternative, Green Tea and Salvadora Persica (Siwak) Extracts on Entercoccus Faecalis”. Journal of Baghdad College of Dentistry 27 (2): 1-5. https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/703.