Pengembangan Sistem dan Model Bisnis Pengelolaan Lumpur Tinja di Kota Sawahlunto. Jurnal Serambi Engineering, [S. l.], v. 10, n. 2, 2025. Disponível em: https://jse.serambimekkah.id/index.php/jse/article/view/874. Acesso em: 26 jan. 2026.