Zulpani, Tanzila Dwi, et al. “HUBUNGAN KPERCAYAAN DIRI SISWA DENGAN PEMAHAMAN KONSEP MATEMATIS SISWA KELAS XI”. THEOREMA: The Journal Education of Mathematics, vol. 4, no. 1, July 2023, https://e-journal.unimudasorong.ac.id/index.php/jurnaltheorema/article/view/1129.