Zebua, Nur Ayu, et al. “Analysis of the Learning Process and Learning Outcomes of Mathematics for Class VIII UPTD SMP Negeri 1 Gunungsitoli Idanoi”. QISTINA: Jurnal Multidisiplin Indonesia, vol. 2, no. 1, June 2023, pp. 189-98, doi:10.57235/qistina.v2i1.566.