Кафка, С. М., and О. С. Степанюк. “Formation of Cost Management System of Oil and Gas Extraction Enterprises”. Scientific Bulletin of Ivano-Frankivsk National Technical University of Oil and Gas (Series: Economics and Management in the Oil and Gas Industry) 2, no. 12 (September 30, 2015): 36–45. Accessed April 22, 2024. https://eung.nung.edu.ua/index.php/ecom/article/view/113.