“PENGARUH MODEL PROBLEM BASED LEARNING TERHADAP HASIL BELAJAR SISWA PADA MATA PELAJARAN IPAS DI KELAS IV SD NEGERI 065012 SIMPANG SELAYANG, MEDAN TUNTUNGAN” (2026) Universum: Journal of Holistic and Multidisciplinary Perspectives, 1(1), pp. 16–24. Available at: https://publicpublication.biz.id/ojs/index.php/universum/article/view/5 (Accessed: 5 November 2026).