RAMDHANI, I.; SUBIYANTORO, H. The Effect of the Duolingo App to Improve Vocabulary Mastery Among Gen-Z In an English Course Program . Journal of General Education and Humanities, Bandung, Indonesia, v. 4, n. 4, p. 1635–1646, 2025. DOI: 10.58421/gehu.v4i4.720. Disponível em: https://journal-gehu.com/index.php/gehu/article/view/720. Acesso em: 30 jun. 2026.