CUEVA VALLADOLID , H. G.; YOCTUN CABRERA , J. C. Audiovisual resources and the quality of teaching university mathematics. Journal of business and entrepreneurial studie, [S. l.], 2021. DOI: 10.37956/jbes.v0i0.220. Disponível em: https://journalbusinesses.com/index.php/revista/article/view/220. Acesso em: 26 apr. 2026.