LÓPEZ MARTÍNEZ, X. S. Considerations for the opening of private preschool institutions in Mexico. Universita Ciencia, [S. l.], v. 4, n. Especial, p. 290–299, 2015. DOI: 10.5281/zenodo.8201201. Disponível em: https://universita.ux.edu.mx/universita-ciencia/article/view/1110. Acesso em: 14 nov. 2026.