Ángel Castillo, Manuel. «The Mexico-Guatemala Border: New Controls on Transborder Migrations in View of Recent Integration Schemes?». Frontera Norte 15, no. 29 (julio 13, 2017): 35–64. Accedido abril 12, 2025. https://fronteranorte.colef.mx./index.php/fronteranorte/article/view/1335.