putra aldino maulana. The Effect of EDAPP as LMS on Students’ English Proficiency on Junior High School Student. RETAIN : J. Res. Engl. Lang. Teach. [Internet]. 2023 Oct. 6 [cited 2025 Jun. 30];11(03):31-8. Available from: https://ejournal.unesa.ac.id/index.php/retain/article/view/56604