RIA, Ria Mayasari; SOFIARINI, Andriana; KUSNANTO, R. Angga Bagus. Pengembangan Media Jam Sudut Pada Pembelajaran Matematika Di SD Negeri 12. Sangkalemo : The Elementary School Teacher Education Journal, [S. l.], v. 1, n. 2, p. 1–10, 2022. Disponível em: https://e-journal.upr.ac.id/index.php/SANGKALEMO/article/view/5050. Acesso em: 27 oct. 2025.