Ahmadizadeh, Maryam, Behrang Esmaeilishad, Mahboube Soleimanpour Omran, and Gholamreza Banagar. 2022. “Ecosystem Protection Curriculum Model With Passive Defense Approach”. International Journal of Education and Cognitive Sciences 5 (4): 101-8. https://journalecs.com/index.php/ecs/article/view/164.