TUSYAHDIAH, N. H.; DJAZILAN, M. S.; RETNAWATI, T.; MEGA. Peningkatan Hasil Belajar Matematika Materi Sudut Melalui Model Problem Based Learning Berbantuan Benda Konkret Siswa SD. PROSIDING NATIONAL CONFERENCE FOR UMMAH, [S. l.], v. 2, n. 1, p. 519–523, 2023. Disponível em: https://conferences.unusa.ac.id/index.php/NCU2020/article/view/1196. Acesso em: 20 may. 2024.