ANTONIUS KAP SIMBOLON. THE THE EFFECTIVENESS OF THE CREATIVE PROBLEM SOLVING LEARNING MODEL IN TERMS OF STUDENTS’ MATHEMATICAL REASONING AND COMMUNICATION SKILLS. Nusantara Hasana Journal, [S. l.], v. 2, n. 3, p. 147–156, 2022. Disponível em: https://www.nusantarahasanajournal.com/index.php/nhj/article/view/421. Acesso em: 15 aug. 2025.