“291. Upaya Meningkatkan Hasil Belajar Matematika Siswa Dengan Model Problem Based Learning (PBL) Materi Statistika SMA” 1, no. 1 (July 3, 2023): 2596–2605. Accessed August 11, 2026. https://conference.upgris.ac.id/index.php/psnppg/article/view/3994.