Influence of Approach Cooperatif Learning Type Jigsaw on the Mathematical Problem-Solving Ability of PGSD Students at STKIP HAMAZAR. JISIP (Jurnal Ilmu Sosial dan Pendidikan), [S. l.], v. 9, n. 1, p. 401–407, 2025. DOI: 10.58258/jisip.v9i1.8187. Disponível em: https://ejournal.mandalanursa.org/index.php/JISIP/article/view/8187. Acesso em: 21 sep. 2026.