Sunarto, Sunarto. “Environmental Strategic Planning Rumah Sakit Persahabatan Menuju Green Hospital”. IJEEM - Indonesian Journal of Environmental Education and Management 3, no. 2 (July 28, 2018): 101–114. Accessed November 6, 2024. https://journal.unj.ac.id/unj/index.php/ijeem/article/view/7253.