Siagian, M. T., L. Hakim, and D. L. Rajagukguk. “KEGIATAN PROMOSI KESEHATAN BAHAYA MEROKOK DI SMK SWASTA MANDIRI PERCUT SEI TUAN”. Jurnal Abdimas Mutiara, vol. 1, no. 1, June 2020, pp. 113-21, https://e-journal.sari-mutiara.ac.id/index.php/JAM/article/view/1174.