W. M. Harris, A. A. F. de Siqueira, H. Maciel, R. A. da Silva, G. Ciari Junior, and C. P. Rosenburg, “ Evaluation model for child care services at the local level ”, Rev. saúde pública, vol. 9, no. 2, pp. 249–258, Jun. 1975, doi: 10.1590/S0034-89101975000200015.