SARDI, Muhammad yusran. Peningkatan Hasil Belajar Matematika Siswa Sekolah Dasar Melalui Model Problem Based Learning. Global Journal Teaching Professional, [S. l.], v. 2, n. 4, p. 236–246, 2023. DOI: 10.35458/jtp.v2i4.1090. Disponível em: https://jurnal.sainsglobal.com/index.php/gpp/article/view/1090. Acesso em: 9 may. 2026.