STUDENTS’ PERCEPTION IN USING DUOLINGO APPLICATION IN SPEAKING ACTIVITIES IN STATE JUNIOR HIGH SCHOOL 4 LANGGAM. Indonesian Journal of Studies on Humanities, Social Sciences and Education, [S. l.], v. 1, n. 2, p. 26–37, 2024. DOI: 10.54783/79qtje88. Disponível em: https://ijhsed.com/index.php/a/article/view/10.. Acesso em: 26 mar. 2026.