YULIANA, Y. PENINGKATAN HASIL BELAJAR MATEMATIKA MELALUI PEMBELAJARAN PROBLEM BASED LEARNING BERBASIS MASALAH KONTEKSTUAL SISWA KELAS X SMA NEGERI 2 MALINAU . ACTION : Jurnal Inovasi Penelitian Tindakan Kelas dan Sekolah, [S. l.], v. 3, n. 2, p. 157-165, 2023. DOI: 10.51878/action.v3i2.2254. Disponível em: https://jurnalp4i.com/index.php/action/article/view/2254. Acesso em: 11 jan. 2025.