Lubis, Fadrizal, Widya Apriani, and Hendri Rahmat. “Penerapan Lubang Resapan Biopori Bagi Panti Asuhan Hikmah Kota Pekanbaru”. FLEKSIBEL: Jurnal Pengabdian Masyarakat 3, no. 1 (April 17, 2022): 15-25. Accessed March 29, 2024. https://journal.unilak.ac.id/index.php/Fleksibel/article/view/9042.