ZELAYA DE LA PARRA, E. A model for investment planning in Mexico. Estudios Económicos de El Colegio de México, [S. l.], v. 8, n. 2, p. 263–273, 1993. DOI: 10.24201/ee.v8i2.285. Disponível em: https://estudioseconomicos.colmex.mx/index.php/economicos/article/view/285. Acesso em: 19 may. 2024.