Ratna, Ratna Maulida. “A Case Study of Students With Learning Difficulties in Mathematics at Junior High School”. Devotion : Journal of Research and Community Service 6, no. 5 (June 4, 2025): 450–459. Accessed August 1, 2026. https://www.devotion.greenvest.co.id.submitjurnal.id/index.php/dev/article/view/25458.