KÄLBERER, N.; BÖHMER, C.; TSCHIRPKE, K.; PETENDRA, B.; BECK-MEUTH, E. M. Preparatory Mathematics Course for Non-Traditional Engineering Students. International Journal of Engineering Pedagogy (iJEP), [S. l.], v. 4, n. 4, p. pp. 51–58, 2014. DOI: 10.3991/ijep.v4i4.3999. Disponível em: https://online-journals.org/index.php/i-jep/article/view/3999. Acesso em: 26 sep. 2022.