Santos, R. dos, Sousa, A.F. de, Sousa, R.N., Silva, E. de M. dos S., Neto, G.L. de O., Ferraz, V.R. da S., Macêdo, G.A.R. de and Oliveira, L.G.F. de 2024. Performance indicators of piauienses in OBMEP: An application using coefficients and indexes based on population. Seven Editora. (Apr. 2024), 928–941.