“Validitas Dan Reliabilitas Instrumen Tes Kemampuan Komunikasi Matematis Materi Relasi Dan Fungsi”. Jurnal Sustainable 5, no. 1 (June 19, 2022): 89–99. Accessed November 14, 2025. https://rumahjurnal.iainsasbabel.ac.id/sus/article/view/2232.