Silva, L. R. da, Mello, J. A. V. B., Gonze, N. C., & Orrico Filho, R. D. (2015). Construction of a standard index and analysis of financial performance of publicly traded companies related to the activity of exploration of highways. Scientia Plena, 11(3). Retrieved from https://www.scientiaplena.org.br/sp/article/view/2138