Nur M. B, R., Q. Leila, R. Ulfa Aprilia, N. Azizah A. S, and H. Algristian. “Public Perception Of Smoking Behavior Based On Level Of Education”. PROCEEDING SURABAYA INTERNATIONAL HEALTH CONFERENCE 2019, vol. 1, no. 1, June 2020, pp. 284-90, https://conferences.unusa.ac.id/index.php/SIHC19/article/view/568.