ONNAKKLUM, W. . A Study of Factor on Turbidity Removal Efficiency for Sludge Recirculation Clarifier . Engineering and Technology Horizons , [S. l.], v. 38, n. 4, p. 67–77, 2021. Disponível em: https://ph01.tci-thaijo.org/index.php/lej/article/view/244943. Acesso em: 3 may. 2024.