LÓPEZ PRIETO, Adriana. 21st Century Skills: A Proposal for ELT Teachers Successful Performance Today. Coloquio, [S. l.], v. 3, n. 3, p. 21–28, 2023. Disponível em: https://revistas.unilibre.edu.co/index.php/coloquio/article/view/11136. Acesso em: 7 dec. 2025.