БАКАЙ, М. Л. The System of Integrated Performance Evaluation of the Effectiveness of Service Production in the Gas Transportation Industry. Scientific Bulletin of Ivano-Frankivsk National Technical University of Oil and Gas (Series: Economics and Management in the Oil and Gas Industry), [S. l.], v. 2, n. 14, p. 82–91, 2018. Disponível em: https://eung.nung.edu.ua/index.php/ecom/article/view/32. Acesso em: 2 may. 2024.