Marković, Branka, Milica Lakić, and Ružica Đervida. “APPLICATION OF PARAMETER STATISTICAL TESTS AND DATA ENVELOPMENT ANALYSIS METHODS IN MODERN BUSINESS”. SCIENCE International Journal 3, no. 4 (July 25, 2025): 29–34. Accessed April 27, 2026. https://scienceij.com/index.php/sij/article/view/73.