Pramesti RD, Padmadewi NN, Wahyuni LGE. Duolingo: A Qualitative Study on Vocabulary Acquisition. TATEFL [Internet]. 2025 May 27 [cited 2026 Jan. 31];6(1):41-52. Available from: https://jurnal.stkipahsingaraja.ac.id/index.php/tatefl/article/view/942