Hasugian, Grace, Dwi Novita Sari, Ramadhani Ramadhani, Burlianda Burlianda, and Masniawita Gloria Sinaga. 2024. “Meningkatkan Kemampuan Komunikasi Matematis Siswa Dan Self Confidence Melalui Penerapan Model Problem Based Learning Di SMA Negeri 1 Tanjung Morawa”. Journal on Education 6 (4), 19756-67. https://doi.org/10.31004/joe.v6i4.5993.