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“UPAYA PENINGKATAN HASIL BELAJAR MUATAN IPA MATERI GAYA MELALUI PENERAPAN PROBLEM BASED LEARNING (PBL) PADA SISWA KELAS IV SD NEGERI SALAMREJO TAHUN PELAJARAN 2021/2022”, jrpi, vol. 2, no. 8, pp. 1130–1139, Aug. 2022, Accessed: Dec. 02, 2025. [Online]. Available: https://ojs.unsiq.ac.id/index.php/jrpi/article/view/5299