PUTRA, Isaac Akbar Alfahquari Harisma; SUWARNO, Suwarno; WILUJENG, Hestu. Educaplay Froggy Jumps: Improving Cognitive Outcomes in Three-Variable Linear Equation Systems. Indonesian Journal of Mathematics and Natural Science Education, [S. l.], v. 6, n. 2, p. 102–111, 2025. DOI: 10.35719/mass.v6i2.224. Disponível em: https://mass.uinkhas.ac.id/index.php/mass/article/view/224. Acesso em: 9 apr. 2026.