SANTIKA, Nathanael. The Application of Audio Recording in a Smartphone to Assist Students’ Speaking Skills in Senior High School. RETAIN : Journal of Research in English Language Teaching, [S. l.], v. 9, n. 2, p. 102–111, 2021. Disponível em: https://ejournal.unesa.ac.id/index.php/retain/article/view/40241. Acesso em: 1 jul. 2025.