MARPAUNG, Ricard Fredrik; PINONDANG HOTRIA SIREGAR. The Relationship Of Knowledge About The Hazards Of Smoking With Smoking Behavior In The Teenns In Nagori Gajing Jaya Kab. Simalungun In 2021. Science Midwifery, [S. l.], v. 10, n. 1, October, p. 643–646, 2021. DOI: 10.35335/midwifery.v10i1, October.610. Disponível em: https://www.midwifery.iocspublisher.org/index.php/midwifery/article/view/610. Acesso em: 30 apr. 2026.