BAL, Z.; DENİZ, E. AN APPLICATION OF DATA ENVELOPMENT ANALYSIS TO DIGITAL MARKETING SECTOR. Eurasian Eononometrics, Statistics and Emprical Economics Journal, [S. l.], n. 17, p. 99–106, 2020. DOI: 10.17740/eas.stat.2020-V17-07. Disponível em: https://eurasianacademy.org/index.php/econstat/article/view/1015. Acesso em: 11 nov. 2026.