The Effect of Smoking Behavior on Students’ Learning Discipline: A Study at SMA Negeri 2 Bitung. Journal of Health Education and Behavior, [S. l.], v. 1, n. 2, p. 55–62, 2025. DOI: 10.47718/heb.v1i2.69. Disponível em: https://ejurnal.jurkeppolkesdo.my.id/index.php/HEB/article/view/69. Acesso em: 22 mar. 2026.