Ambusaidi, A. K.; Al-Dayri, H. M.; Al-Maawali, A.-J. A. The Effectiveness of an Educational Program Based on Green School Principles (Istedamah) on Improving the Knowledge, Attitudes and Behavior of Basic Education Students in the Sultanate of Oman towards Specific Sustainable Development Issues. JJES 2025, 20, 574-561.