Wibowo WA, Tarso T, Siswanto DH. The Effectiveness of the Problem-Solving Learning Model Assisted by GeoGebra on Mathematical Problem-Solving Skills. PJPK [Internet]. 2026 Jun. 30 [cited 2026 Jul. 16];26(1):32-9. Available from: https://www.ejournal.unis.ac.id/index.php/pelita/article/view/6318