ZAMORA, J. T.; ZAMORA, J. J. M. . 21st Century Teaching Skills and Teaching Standards Competence Level of Teacher. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 21, n. 5, p. 220–238, 2022. Disponível em: https://www.ijlter.myres.net/index.php/ijlter/article/view/1324. Acesso em: 13 jun. 2026.