“PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING BERBANTUAN POP-UP BOOK TERHADAP HASIL BELAJAR IPAS”. Jurnal Inovasi Sekolah Dasar 1, no. 5 (Agustus 31, 2024). Diakses Oktober 16, 2026. https://jurnal.unimed.ac.id/2012/index.php/jisd/article/view/63018.