Megawati, Radiah Hamid, and Ismail Sangkala. “Improving the Vocabulary of the Students by Using Duolingo Application at the Second Grade of SMP Negeri 1 Kelara”. English Language Teaching Methodology 3, no. 1 (April 15, 2023): 13–19. Accessed July 3, 2024. https://jurnal.fkip.unismuh.ac.id/index.php/eltm/article/view/176.