Casas Díaz, Eduardo, Sergio Castillo, and Ma. de los Ángeles Velázquez. “Methodological Proposal for the Optimization of Resources Invested in Research”. Estudios Económicos de El Colegio de México 11, no. 1 (January 1, 1996): 33–54. Accessed April 25, 2024. https://estudioseconomicos.colmex.mx/index.php/economicos/article/view/262.