Azmi, Fadila, and Elfayetti Elfayetti. “Analisis Sikap Peduli Lingkungan Siswa Melalui Program Adiwiyata Di SMA Negeri 1 Medan”. JURNAL GEOGRAFI 9, no. 2 (August 8, 2017): 125–132. Accessed April 27, 2025. https://jurnal.unimed.ac.id/2012/index.php/geo/article/view/6901.