Lutfiah, Zumrotun, Riyadi Saputra, and Riandini Putri. 2025. “The Effect of Using the Duolingo Application on English Learning Outcomes of Third-Grade Students at SD Negeri 10 Sitiung”. TOFEDU: The Future of Education Journal 4 (7):3516-22. https://doi.org/10.61445/tofedu.v4i7.813.