Assyifa A, Maria Ulfa S. Duolingo as Pre-Speaking Practice: Enhancing Speaking Performance and Reducing Social Anxiety Among EFL Students. SELL [Internet]. 2026 Feb. 14 [cited 2026 Jul. 16];11(1):23-34. Available from: http://publikasi.stkippgri-bkl.ac.id/index.php/SL/article/view/1281