MÉNDEZ RUIZ, A.; CAMPOS VÁZQUEZ, R. M. Girl or boy? A study on Mexican parents’ preferences for the sex of their children. Estudios Económicos de El Colegio de México, [S. l.], v. 28, n. 2, p. 217–248, 2013. DOI: 10.24201/ee.v28i2.80. Disponível em: https://estudioseconomicos.colmex.mx/index.php/economicos/article/view/80. Acesso em: 19 apr. 2024.