YULIATIN, I. UPAYA MENINGKATKAN HASIL BELAJAR MATEMATIKA MELALUI PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING MATERI UKURAN TENDENSI SENTRAL PADA SISWA KELAS XII IPA SMA NEGERI 1 DEKAI. SECONDARY: Jurnal Inovasi Pendidikan Menengah , [S. l.], v. 3, n. 1, p. 31-37, 2023. DOI: 10.51878/secondary.v3i1.1940. Disponível em: https://mail.jurnalp4i.com/index.php/secondary/article/view/1940. Acesso em: 8 jan. 2025.