AR-GE YATIRIMLARININ FİNANSAL PERFORMANS ÜZERİNE ETKİSİNİN VERİ ZARFLAMA ANALİZİ İLE İNCELENMESİ. bmij [Internet]. 2020 Sep. 25 [cited 2025 Aug. 6];8(3):2649-74. Available from: https://www.bmij.org/index.php/1/article/view/1539