ZULIANA, Nurtinah; PRASTITASARI, Herti. Model Perkasa untuk Meningkatkan Berpikir Kritis, Problem Solving, dan Kolaborasi dalam Pembelajaran Matematika SD. Walada: Journal of Primary Education, [S. l.], v. 5, n. 3, p. 3370–3381, 2026. DOI: 10.61798/wjpe.v5i3.922. Disponível em: https://ccg-edu.org/index.php/wjpe/article/view/922. Acesso em: 28 oct. 2026.