OKUTANI, T. . Utilization of silica in rice hulls as raw materials for silicon semiconductors. Journal of Metals, Materials and Minerals, Bangkok, Thailand, v. 19, n. 2, 2017. Disponível em: https://jmmm.material.chula.ac.th/index.php/jmmm/article/view/236. Acesso em: 14 jun. 2024.