Rubio Romero, Enrique, and Rony Hervin Aguilar Rivera. “Comparative Analysis of the Input-Output Matrix 1990: Contributions to National Economic Programming”. Realidad: Revista de Ciencias Sociales y Humanidades, no. 44 (April 27, 1995): 291–347. Accessed December 6, 2025. https://camjol.info/index.php/REALIDAD/article/view/5182.