R. . Salva, 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”, ECO EDU ENTRE, vol. 4, no. 2, pp. 595–603, Aug. 2024.