Karatkevich, Alexey I., Boris V. Lapko, and Dina V. Shparun. “Analysis of Methods for Determining the Total Costs of Imports for Exports Using Tables «input – Output»”. Journal of the Belarusian State University. Economics, no. 2 (December 31, 2025): 53–60. Accessed July 19, 2026. https://journals.bsu.by/index.php/economy/article/view/7541.