Rukayati DL, Masfuah S, Santoso DA. Efektivitas Model Problem Based Learning Berbantuan Media Popin terhadap Hasil Belajar Siswa pada Mata Pelajaran IPAS Siswa SD. basicedu [Internet]. 2024 Aug. 25 [cited 2025 Sep. 18];8(5):3834-42. Available from: https://jbasic.org/index.php/basicedu/article/view/8641