SAKINÇ, İlker. Using Grey Relational Analysis to Determine the Financial Performance of Turkish Football Clubs. Journal of Economics Library, [S. l.], v. 1, n. 1, p. 22–33, 2014. Disponível em: https://journals.econsciences.com/index.php/JEL/article/view/160. Acesso em: 1 feb. 2026.