Tobing DAL, Simamora R, Sidabutar R. Pengaruh Model Problem Based Learning (PBL) Melalui Penggunaan Aplikasi Geogebra Terhadap Kemampuan Pemahaman Konsep Matematis Siswa Kelas X . JIPSI [Internet]. 2026 Jan. 7 [cited 2026 Jan. 31];4(4):916-29. Available from: https://www.putrapublisher.org/ojs/index.php/jipsi/article/view/1262