Widayat P. Sosialisasi Bank Sampah di Kelurahan Umban Sari Kecamatan Rumbai Kota Pekanbaru. JBS [Internet]. 2020 Feb. 28 [cited 2025 Jan. 23];4(1):27-31. Available from: https://ejournal.uin-suka.ac.id/saintek/jbs/article/view/1739