Azmi F, Elfayetti E. Analisis Sikap Peduli Lingkungan Siswa Melalui Program Adiwiyata Di SMA Negeri 1 Medan. JG [Internet]. 2017 Aug. 8 [cited 2024 Dec. 20];9(2):125-32. Available from: http://103.242.233.34/index.php/geo/article/view/6901