LIU, M.; ZHANG, Q. Evaluation of Student Performance with Predicted Learning Curve Based on Grey Models for Personalized Tutoring. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 14, n. 13, p. pp. 157–171, 2019. DOI: 10.3991/ijet.v14i13.9880. Disponível em: https://online-journals.org/index.php/i-jet/article/view/9880. Acesso em: 28 jan. 2022.