Yunita Sari Putri, H., Supriyono, S., & Miza Rahmatika, A. (2019). ENGLISH KEREN REK (EKR) WEB BASE GAME APPLICATION MODEL TO ENRICH X GRADE STUDENTS’ ENGLISH GRAMMAR ACHIEVEMENT. JOSAR (Journal of Students Academic Research), 4(1), 107-120. https://doi.org/10.35457/josar.v4i1.783