Noblecilla R. P, Rimaycuna R. J, Saldarriaga Y. D, Solis V. J, Cruz C. GJF. Removal of lead (Pb) in water samples from the Tumbes river using an adsorbent material based on ignimbrite. Manglar [Internet]. 2024 Aug. 31 [cited 2025 Sep. 5];21(3):313-20. Available from: https://revistas.untumbes.edu.pe/index.php/manglar/article/view/511