Peningkatan Hasil Belajar Matematika melalui Pembelajaran Berdiferensiasi dengan Model Problem Based Learning Kelas II SDN Pedurungan Lor 02 Semarang. psnppg. 2023;1(2):1888-1896. Accessed August 12, 2026. https://conference.upgris.ac.id/index.php/psnppg/article/view/5331