Hamda, Muhammad Ammar Naufal, Nurwahidah. Effectiveness of Problem-Based Learning with GeoGebra on Grade VII Students’ Learning Outcomes in Polyhedra at SMP Negeri 1 Mangarabombang . VENN [Internet]. 2025 Sep. 22 [cited 2026 Oct. 7];4(3):344-5. Available from: https://journal.web.id/journals/venn/article/view/340