Mangunsong, Roy Romey Daulas, Bhisma Murti, and Mahendra Wijaya. “Association Between Cigarette Package Warning Messages, Self-Efficacy, and Smoking Behavior Among Students at Health Polytechnic in Surakarta, Indonesia”. Journal of Health Policy and Management 1, no. 1 (January 16, 2016): 44–52. Accessed April 29, 2024. http://thejhpm.com/index.php/thejhpm/article/view/11.