NASUTION, N.; PRASETYO, K.; JACKY, M. Validitas Perangkat Pembelajaran Berbasis Education For Sustainable Development Pada Mata Pelajaran IPS Di Sekolah Menengah Pertama. The Indonesian Journal of Social Studies, [S. l.], v. 3, n. 1, p. 13–20, 2020. DOI: 10.26740/ijss.v3n1.p13-20. Disponível em: https://journal.unesa.ac.id/index.php/jpips/article/view/7583. Acesso em: 3 may. 2024.