ADAMS, L. A.; SHAIBU, R. O.; ESSIEN, R. E.; OKI, A. Bentonite clay and waterglass porous monoliths via the sol-gel process. Journal of Metals, Materials and Minerals, Bangkok, Thailand, v. 21, n. 2, 2011. Disponível em: http://jmmm.material.chula.ac.th/index.php/jmmm/article/view/179. Acesso em: 6 dec. 2021.