ELIMINATION OF CHEMICAL OXYGEN DEMAND IN AQUEOUS SOLUTIONS BY NIPA PALM LEAVES. Quantum Journal of Engineering, Science and Technology, [S. l.], v. 5, n. 2, p. 67–74, 2024. Disponível em: https://mail.qjoest.com/index.php/qjoest/article/view/136. Acesso em: 28 jul. 2026.