Sompotan, Dale Dompas, and Janes Sinaga. “PENCEGAHAN PENCEMARAN LINGKUNGAN”. Jurnal Sains, Teknologi dan Kesehatan 1, no. 1 (July 31, 2022): 6–13. Accessed October 12, 2024. https://ejournal.itka.or.id/index.php/saintekes/article/view/2.