Salman, Suzan A. “Measurement of Salivary Immunoglobulin A of Participants With a Healthy, Gingivitis and Chronic Periodontitis Conditions”. Journal of Baghdad College of Dentistry 27, no. 3 (September 15, 2015): 120–123. Accessed May 7, 2024. https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/817.