UPAYA MENINGKATKAN HASIL BELAJAR MATEMATIKA SISWA DENGAN MODEL PROBLEM BASED LEARNING BERBANTU SOFTWARE APLIKASI MAPLE 11. JOURNAL OF SCIENCE AND SOCIAL RESEARCH, [S. l.], v. 2, n. 1, p. 29–33, 2020. DOI: 10.54314/jssr.v2i1.439. Disponível em: https://jurnal.goretanpena.com/index.php/JSSR/article/view/439.. Acesso em: 28 apr. 2026.