“The Trade between the countries of the pacific alliance. An analysis from the gravitational model and the bilateral exchange” (2017) Teorías, Enfoques y Aplicaciones en las Ciencias Sociales, 9(20), pp. 11–23. Available at: https://revistas2.uclave.org/index.php/teacs/article/view/174 (Accessed: 24 July 2026).