Robertus Daya. ANALYSIS OF ABILITY IN UNDERSTANDING MATHEMATICS CONCEPTS ON THE CIRCULAR MATERIAL OF STUDENTS OF CLASS VIII OF SMP NEGERI 2 BAY IN THE 2020/2021 STUDY YEAR. Afore [Internet]. 2023Feb.15 [cited 2025Jul.5];1(2):78-7. Available from: https://jurnal.uniraya.ac.id/index.php/Afore/article/view/725