J. Sitorus, M. E., Fentiana, N., & Gustiani, Y. (2020). BAHAYA MEROKOK DI KALANGAN REMAJA SMP AMAL LUHUR NO.116 KOTA MEDAN. Jurnal Abdimas Mutiara, 1(2), 90–95. Retrieved from https://e-journal.sari-mutiara.ac.id/index.php/JAM/article/view/1316