Widayat, Prama, Ryan Pahlawan, and Safrul Rajab. “Tantangan Pengelolaan Sampah Kota Pekanbaru”. Jurnal Indragiri Penelitian Multidisiplin 5, no. 1 (January 23, 2025): 110–115. Accessed August 19, 2025. https://ejournal.indrainstitute.id/index.php/jipm/article/view/1155.