Mulyani, Lina, and Lilis Suwandari. “Principal Management in Realizing Adiwiyata Schools: A Qualitative Study of Environmental Education Leadership in Indonesian Secondary Schools”. Edu Cendikia: Jurnal Ilmiah Kependidikan, vol. 6, no. 01, Apr. 2026, pp. 242-56, doi:10.47709/educendikia.v6i01.7966.