Calixarenes: A Versatile Source for the Recovery of Reactive Blue-19 Dye from Industrial Wastewater. Pakistan Journal of Analytical & Environmental Chemistry, Pakistan, v. 13, n. 2, p. 148 – 158, 2012. DOI: 10.21743/. Disponível em: http://pjaec.pk/index.php/pjaec/article/view/378. Acesso em: 12 jul. 2025.