Sihombing WR, Dirgantoro KPS, Bonyah E. Application of GeoGebra-Assisted Problem-Based Learning Model to Strengthen the Learning Interest of Eighth Grade Junior High School Students. Gradient [Internet]. 2025 Aug. 1 [cited 2025 Oct. 15];2(02):72-80. Available from: https://journals.eduped.org/index.php/Gradient/article/view/1742