rahma, Rahma. “Schoolchildren, Knowledge, Perce DESCRIPTION OF SCHOOLCHILDREN’S KNOWLEDGE AND PERCEPTION LEVELS ABOUT SMOKING BEHAVIOR”. Jurnal Medika Hutama 2, no. 03 April (April 20, 2021): 823-833. Accessed June 2, 2026. http://www.jurnalmedikahutama.com/index.php/JMH/article/view/175.