Lubis, R.N. , Hakim, L.E. and Aziz, T.A. 2023. STUDENTS’ MATHEMATICAL COMMUNICATION SKILLS REVIEWED FROM SELF-CONFIDENCE THROUGH APPROACH PROBLEM-BASED LEARNING (PBL). Tesseract: International Journal of Geometry and Applied Mathematics. 1, 1 (Mar. 2023), 9–20. DOI:https://doi.org/10.57254/tess.v1i1.7.