Rakhmawati, Ika, and Yulia Nugrahimi. “Improving English Language Testing Using Babbel Application On The Fourth Semester Students’ At Universitas Bhinneka PGRI”. Innovative: Journal Of Social Science Research 3, no. 5 (October 19, 2023): 3887–3898. Accessed June 20, 2026. http://j-innovative.org/index.php/Innovative/article/view/5279.