Ronal Raigen Giawa 2023. ANALYSIS THE ABILITY UNDERSTANDING THE CONCEPT STUDENTS IN CLASS VIII OF SMP ORAHILI FONDRAKO QUADRATIC. Afore : Jurnal Pendidikan Matematika. 2, 1 (Mar. 2023), 103 - 111. DOI:https://doi.org/10.57094/afore.v2i1.805.