ROCHA-FEREGRINO, Gerardo; CARRASCO ESPINOZA, Pilar Alejandra. A Binational COIL Matrix-Cryptography Challenge to Teach Invertibility and SDG 4 in Engineering Education. LACCEI, [S. l.], v. 1, n. 14, 2026. DOI: 10.18687/LACCEI2026.1.1.1108. Disponível em: https://proceedings.laccei.org/index.php/laccei/article/view/7216. Acesso em: 3 oct. 2026.