AFIFAH, Ani; KARIM, Samuel. Developing Mathematical Creativity in Early Grades: Impact Analysis of Geometric Problem Solving on Student Cognitive Levels. Child Education Journal, [S. l.], v. 7, n. 3, p. 197–224, 2025. DOI: 10.33086/cej.v7i3.8424. Disponível em: https://journal2.unusa.ac.id/index.php/CEJ/article/view/8424. Acesso em: 22 sep. 2026.