Penerapan Flipped Classroom Dengan Model Problem Based Learning PBL Terhadap Kemampuan Berpikir Kritis Dan Adaptabilitas Lingkungan Murid SMA Materi Perubahan Lingkungan. Jurnal Ilmu Pendidikan Nasional (JIPNAS), [S. l.], v. 4, n. 2, p. 57–62, 2026. DOI: 10.59435/jipnas.v4i2.742. Disponível em: https://jurnal.padangtekno.com/index.php/jipnas/article/view/742. Acesso em: 15 jul. 2026.