Yakut, E., Harbalıoğlu, M., & Pekkan, N. Ülkü. (2021). The Examination of Financial Performance of Companies in Tourism Sector, Which Are Being, Traded in Exchange Istanbul (EI) With Data Envelopment Analysis and Total Factor Productivity. Journal of Business Research - Turk, 7(2), 235–257. Retrieved from https://isarder.org/index.php/isarder/article/view/238