IRAH KASIRAH; NADIROH; HAFID ABBAS. The Effectiveness of Environmental Education Learning Strategy Teaching Materials (SPPLH) in Improving Teachers’ Cognitive Flexibility. Jurnal Penelitian dan Pengembangan Pendidikan, [S. l.], v. 6, n. 3, p. 483–491, 2023. DOI: 10.23887/jppp.v6i3.56831. Disponível em: https://ejournal.undiksha.ac.id/index.php/JJL/article/view/56831. Acesso em: 26 apr. 2024.