PENINGKATAN HASIL BELAJAR MATEMATIKA MELALUI MODEL PEMBELAJARAN PROJECT BASED LEARNING (PJBL) SISWA KELAS I SDN 1 RANTAU LURUS . KPD [Internet]. 2023 Jul. 31 [cited 2026 Nov. 3];2(3):305-9. Available from: https://kodoo.id/index.php/kpd/article/view/188