Mahmoudi, H., and A. M. A. Seyyed Baqer Mirabbasi. “The United Nations General Assembly’s Role in the Formulation of International Custom”. Opción, Vol. 34, no. 1, June 2019, pp. 1077-43, https://mail.produccioncientificaluz.org/index.php/opcion/article/view/24175.