PENGARUH PENERAPAN MODEL PROBLEM BASED LEARNING TERHADAP HASIL BELAJAR SISWA MATERI BANGUN RUANG SISI LENGKUNG KELAS IX SMPN 3 TONDANO. SOSCIED, [S. l.], v. 8, n. 1, p. 86–93, 2025. DOI: 10.32531/jsoscied.v8i1.915. Disponível em: https://jurnal.poltekstpaul.ac.id/index.php/jsoscied/article/view/915. Acesso em: 23 apr. 2026.