Popović, Nikola, Goran Bjelobaba, Hana Stefanović, Ana Savić, and Nedeljko Stefanović. “The Knowledge Evaluation System in Function of Achieving Competences”. E-business technologies conference proceedings 1, no. 1 (September 25, 2021): 206–207. Accessed December 14, 2025. https://ebt.rs/journals/index.php/conf-proc/article/view/92.