Sulijaya, B., S. L. C. Masulili, E. I. Auerkari, R. Lessang, and Y. Soeroso. “THE HUMAN BETA-DEFENSIN-1 LEVEL FROM SMOKERS WITH CHRONIC PERIODONTITIS”. Asian Journal of Pharmaceutical and Clinical Research, vol. 9, no. 7, Aug. 2016, pp. 174-6, https://journals.innovareacademics.in/index.php/ajpcr/article/view/12791.