FREDY GAVILANES-SAGNAY, EDISON LOZA-AGUIRRE, BYRON ERNESTO VACA BARAHONA, HENRY N. ROA. A Systematic Review of Ill-Defined Problems in the Intelligent Tutoring Systems in Virtual Learning Environments. International Journal of Intelligent Systems and Applications in Engineering, [S. l.], v. 11, n. 5s, p. 220 –, 2023. Disponível em: https://ijisae.org/index.php/IJISAE/article/view/2769. Acesso em: 14 may. 2024.