LI, L.; KEYSER, R. S.; PIERSON, R. No-Cost Learning Material: Perspectives From Industrial and Systems Engineering Students. Journal of Higher Education Theory and Practice, [S. l.], v. 21, n. 10, 2021. DOI: 10.33423/jhetp.v21i10.4636. Disponível em: https://articlegateway.com/index.php/JHETP/article/view/4636. Acesso em: 22 jul. 2024.