Lestari ID. Pengaruh Model Pembelajaran Kooperatif Tipe Open Ended Terhadap Peningkatan Kemampuan Problem Solving di Sekolah Dasar. Joecy Journal [Internet]. 2025 Jun. 12 [cited 2026 Oct. 16];5(2):6434-4. Available from: https://joecy.org/index.php/joecy/article/view/725