Ahmić D, Čolaković N, Lugavić Z, Delić Selimović K. DIFFERENCES IN THE ORGANIZATIONAL EFFECTIVENESS OF SPORTS SYSTEMS ACROSS COMPETITION LEVELS. mus [Internet]. 2024 Dec. 24 [cited 2026 Feb. 23];15(XV, issue II):7-15. Available from: https://maninsport.rs/index.php/mus/article/view/24