Conceição RT, Andrade NA de. Analysis of the commercialization from the Enem by the three schools better ranked in 2015 from the city of São Paulo. Int J Innov Educ Res [Internet]. 2019 Sep. 1 [cited 2025 Aug. 1];7(9):114-23. Available from: https://scholarsjournal.net/index.php/ijier/article/view/1714