Irvan, Alfauzan Ramadhanny Simangunsong, Lilik Subagio, Kamaruddin, and Mutia Rifkah Siregar. “DIFFERENCES EFFECT OF THE APPLICATION THE DISCOVERY LEARNING AND PROBLEM BASED WITH GEOGEBRA TO IMPROVE CRITICAL THINKING ABILITY”. Journal of Islamic, Social, Economics and Development 8, no. 55 (August 31, 2023). Accessed January 18, 2025. https://academicinspired.com/jised/article/view/1717.