Multilevel Analysis of the Biopsychosocial Determinants and Contextual Peer Groups on Smoking Habit in High School Students in East Lampung, Lampung, Indonesia. J HEALTH PROMOT BEHAV. 2021;6(1):9-20. Accessed October 18, 2025. https://www.thejhpb.com/index.php/thejhpb/article/view/286