A Teaching-learning about optimization problems: a close up through the use of GeoGebra software. INTERNATIONAL JOURNAL OF RESEARCH IN EDUCATION METHODOLOGY, [S. l.], v. 10, p. 3368–3376, 2019. DOI: 10.24297/ijrem.v10i0.8090. Disponível em: https://rajpub.com/index.php/ijrem/article/view/8090. Acesso em: 24 jun. 2026.