SYARIPAH, S. .; NURRAHMAN, R.; AMELIA, J. R.; SITUMORANG, C. Using Duolingo Helps Improve English Vocabulary. Journal of Innovative and Creativity, [S. l.], v. 6, n. 1, p. 7876–7881, 2026. DOI: 10.31004/joecy.v6i1.6177. Disponível em: https://joecy.org/index.php/joecy/article/view/6177. Acesso em: 7 nov. 2026.