ZHANG, Yuqing. The Development of an Evaluation Model to Assess the Effect of Online English Teaching Based on Fuzzy Mathematics. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 16, n. 12, p. pp. 186–200, 2021. DOI: 10.3991/ijet.v16i12.23325. Disponível em: https://online-journals.org/index.php/i-jet/article/view/23325. Acesso em: 28 mar. 2024.