Faudziah WS, Budiman IA. Efektivitas Penggunaan Model Problem Based Learning (PBL) terhadap Kemampuan Berpikir Kritis Matematis Siswa SD. PJMSR [Internet]. 2023 Mar. 28 [cited 2026 Jan. 12];2(1):22-9. Available from: https://ejournal.papanda.org/index.php/pjmsr/article/view/272