Abdul Ameer, Lubaba R, and Basima G Ali. 2015. “Effects of Light Smoking on Salivary Levels of Alkaline Phosphatase and Osteocalcin in Chronic Periodontitis Patients”. Journal of Baghdad College of Dentistry 27 (2): 110-14. https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/721.