Камінська ІБ. Evaluating of the Effectiveness of Cost Management for Employees of Oil and Gas Extraction Enterprises of PJSC "Ukrnafta" Precarpathian Basin. ecom [Internet]. 2015 Sep. 20 [cited 2024 May 4];2(12):29-36. Available from: https://eung.nung.edu.ua/index.php/ecom/article/view/112