Rakićević, Zoran, Ognjen Anđelić, Goran Popović, and Bojana Branković. “The Influence of COVID-19 on Production Operations Planning”. Management:Journal of Sustainable Business and Management Solutions in Emerging Economies 28, no. 2 (September 3, 2023): 23–36. Accessed October 7, 2024. https://management.fon.bg.ac.rs/index.php/mng/article/view/436.