ASSALI, M. A. . The Power of a Smile: Exploring the Connection between Teacher Facial Expressions and ESL Learning. Journal of Ecohumanism, [S. l.], v. 3, n. 7, p. 1517–1524, 2024. DOI: 10.62754/joe.v3i7.4316. Disponível em: https://www.ecohumanism.co.uk/joe/ecohumanism/article/view/4316. Acesso em: 25 apr. 2026.