MOSTAFA AHMED EL HAKIM, D. The Trilogy of values Doer and Its Impact in Reinforcement of the Environmental Security. College of Basic Education Research Journal, [S. l.], v. 17, n. 2, p. 280–296, 2021. DOI: 10.33899/berj.2021.129696.1221. Disponível em: https://moss.uomosul.edu.iq/index.php/berj/article/view/38846. Acesso em: 26 oct. 2025.