Sulistiadi, W., M. Veruswati, A. Asyary, M. H. Herawati, R. A. Wulandari, and B. Haryanto. “Smoke-Free Zone in Indonesia: Who Is Doing What Now”. Open Access Macedonian Journal of Medical Sciences, vol. 8, no. E, May 2020, pp. 322-4, doi:10.3889/oamjms.2020.4091.