Stankov, Biljana, and Milijana Roganović. “Challenges of Panel Data Series Application in Research of Various Economic Phenomena: DOI: 10.5937/Etp2503089S”. Ekonomija - teorija i praksa 18, no. 3 (December 23, 2025): 89–100. Accessed March 20, 2026. https://casopis.fimek.edu.rs/index.php/etp/article/view/361.