MANEKAT, S. .; SON, A. L.; SIAHAAN, M. M. L. . An Analysis of Grade VIII Students’ Difficulties in Solving Circle Story Problems: A Study Based on Polya’s Problem-Solving Theory. Brillo Journal, [S. l.], v. 4, n. 2, p. 107–121, 2025. DOI: 10.56773/bj.v4i2.70. Disponível em: https://journal.sncopublishing.com/index.php/brillojournal/article/view/70. Acesso em: 31 jul. 2025.