Rhisma Dwi Zuliana, Devita Sulistiana, Sripit Widiastuti. Effect of Problem Solving and Numbered Heads Together Models on Cooperation Character and Critical Thinking of Fourth Graders in Pancasila Profile. IJEL [Internet]. 2025 Oct. 25 [cited 2025 Oct. 28];4(3):09-20. Available from: https://ijel.asia/index.php/ijel/article/view/264