Serbenyuk, Symon. “On Some Aspects of the Examination in Econometrics ”. Journal of Vasyl Stefanyk Precarpathian National University 8, no. 3 (November 3, 2021): 7–16. Accessed April 19, 2024. https://scijournals.pnu.edu.ua/index.php/jpnu/article/view/5439.