MABEYO, P. E.; GU, J. Coupled effects of hydrophilic nano silica oxide and anatase nano titanium oxide on strengths of oilwell cement. Tanzania Journal of Science, [S. l.], v. 47, n. 2, p. 568–582, 2021. DOI: 10.4314/tjs.v47i2.13. Disponível em: http://tjs.udsm.ac.tz/index.php/tjs/article/view/649. Acesso em: 22 oct. 2021.