YULFENTI SAYUNA; YEHESKIAL NGGANDUNG; AGUSTINA BUTAR-BUTAR. Pengaruh Implementasi Model Problem Based Learning Berbasis Audio Visual Terhadap Peningkatan Hasil Belajar Siswa di SMP Negeri 20 Kupang. Atmosfer: Jurnal Pendidikan, Bahasa, Sastra, Seni, Budaya, dan Sosial Humaniora, [S. l.], v. 4, n. 2, p. 01–07, 2026. DOI: 10.59024/atmosfer.v4i2.1649. Disponível em: https://pbsi-upr.id/index.php/atmosfer/article/view/1649. Acesso em: 9 may. 2026.