Siudek, Tomasz, and Aldona Zawojska. “COMPETITIVENESS IN THE ECONOMIC CONCEPTS, THEORIES AND EMPIRICAL RESEARCH”. Acta Scientiarum Polonorum. Oeconomia 13, no. 1 (March 30, 2014): 91-108. Accessed May 21, 2024. https://js.wne.sggw.pl/index.php/aspe/article/view/4110.