Hein AK, Hein N, da Rosa MP, Junior RPS, Siqueira da Silva F do N, Franco GF. Study of the Relationship between Sports Efficiency Index and the Classification Performance of the Clubs of the Brazilian Championship Series A. ijaers. 2021;8(2). Accessed April 7, 2025. https://journal-repository.com/index.php/ijaers/article/view/3185