LUBIS, Sarah Syahrani; AIN, Siti Quratul. Students’ Factors Difficulty in Learning Mathematics at State Elementary School 42 Pekanbaru. Bulletin of Pedagogical Research, [S. l.], v. 2, n. 2, p. 109–117, 2022. DOI: 10.51278/bpr.v2i2.292. Disponível em: https://attractivejournal.com/index.php/bpr/article/view/292. Acesso em: 6 may. 2026.