Investigation on the critical volume fraction of polymer composites containing spherical fillers using cubic element model . Journal of Pure and Applied Sciences (Science Forum), [S. l.], v. 23, n. 1, p. 254–261, 2023. Disponível em: https://atbuscienceforum.com.ng/index.php/jpas/article/view/90. Acesso em: 25 oct. 2025.