Fathin AZ, Gunawan G, Untarti R, Kusuma JW, Sugiastuti S. EFFORTS TO IMPROVE CRITICAL THINKING SKILLS AND INTEREST IN LEARNING MATHEMATICS USING THE INTEGRATED NUMBER HEAD-TOGETHER PROBLEM-BASED LEARNING MODEL. ECO EDU ENTRE [Internet]. 2023Dec.12 [cited 2026Oct.14];3(3):702-13. Available from: https://ije3.esc-id.org/index.php/home/article/view/185