Renaldi, Reno. “No Smoking Area Policy Implementation On Student In Pekanbaru Hang Tuah Institude Of Health”. Jurnal kesehatan komunitas (Journal of community health) 2, no. 5 (November 1, 2014): 233–238. Accessed April 20, 2024. https://jurnal.htp.ac.id/index.php/keskom/article/view/82.