FADHIL HASIF, A.; DARMI, R. Comparative Analysis of Duolingo and Memrise for English Language Learning. Conference on English Language Teaching, [S. l.], v. 4, n. 1, p. 137–145, 2024. DOI: 10.24090/celti.2024.1017. Disponível em: https://proceedings.uinsaizu.ac.id/index.php/celti/article/view/1017. Acesso em: 3 jul. 2024.