Wilbert, Marcelo Driemeyer, and Erich Cesar Cysne Frota D’Abreu. “Eficiency in Public Education Expenditures: Study of the Municipalities of Alagoas State”. Advances in Scientific and Applied Accounting, vol. 6, no. 3, Dec. 2013, pp. 348-72, https://asaa.anpcont.org.br/asaa/article/view/136.