KHUDHAIR, S. M. Major Speaking Problems that Adult EFL learners Face while Communicating. Amazonia Investiga, [S. l.], v. 8, n. 21, p. 334–340, 2019. Disponível em: https://www.amazoniainvestiga.info/index.php/amazonia/article/view/110. Acesso em: 13 sep. 2025.