Salva, R. ., H. Hamidah, V. . Ayuningtyas, and J. W. . Kusuma. “IMPLEMENTATION OF THE COLLABORATIVE PROBLEM-SOLVING LEARNING MODEL USING GEOGEBRA ON THE MATHEMATICAL COMMUNICATION ABILITY AND CONFIDENCE OF MTS ISLAMIYAH CIOMAS STUDENTS”. International Journal of Economy, Education and Entrepreneurship (IJE3), vol. 4, no. 2, Aug. 2024, pp. 595-03, doi:10.53067/ije3.v4i2.302.