Камінська, І. Б. (2015). Evaluating of the Effectiveness of Cost Management for Employees of Oil and Gas Extraction Enterprises of PJSC "Ukrnafta" Precarpathian Basin. Scientific Bulletin of Ivano-Frankivsk National Technical University of Oil and Gas (Series: Economics and Management in the Oil and Gas Industry), 2(12), 29–36. Retrieved from https://eung.nung.edu.ua/index.php/ecom/article/view/112