PUTRI, Destania Alfina; SUBEKTI, Hasan; SARI, Dhita Ayu Permata. PENINGKATAN KETERAMPILAN PROSES SAINS SISWA PADA MATERI PENCEMARAN LINGKUNGAN MELALUI MODEL PEMBELAJARAN PROBLEM BASED LEARNING. PENSA E-JURNAL: PENDIDIKAN SAINS, [S. l.], v. 8, n. 3, p. 248–253, 2020. DOI: 10.26740/pensa.v8i3.38397. Disponível em: https://ejournal.unesa.ac.id/index.php/pensa/article/view/38397. Acesso em: 31 oct. 2025.