TIAN, Yuxin. Personalized Allocation of English Teaching Resources through Weight Calculation Based on Term Frequency-Inverse Document Frequency. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 15, n. 10, p. pp. 202–214, 2020. DOI: 10.3991/ijet.v15i10.13335. Disponível em: https://online-journals.org/index.php/i-jet/article/view/13335. Acesso em: 5 may. 2024.