PUTRI, Anggita Oktavina; LUTFIANA, Fina. PENGGUNAAN MEDIA PEMBELAJARAN OPPA UNTUK MENINGKATKAN PEMAHAMAN KONSEP MATEMATIS SISWA MTS [THE USE OF OPPA LEARNING MEDIA TO IMPROVE STUDENTS’ UNDERSTANDING OF MATHEMATICAL CONCEPTS IN MTS]. JOHME: Journal of Holistic Mathematics Education, [S. l.], v. 9, n. 2, p. 272–286, 2025. DOI: 10.19166/johme.v9i2.10278. Disponível em: https://ojs.uph.edu/index.php/JOHME/article/view/10278. Acesso em: 10 dec. 2025.