Borodin A, Mityushina I, Harputlu M, Kiseleva N, Kulikov A. Factor Analysis of the Efficiency of Russian Oil and Gas Companies. IJEEP [Internet]. 2023 Jan. 22 [cited 2024 Nov. 21];13(1):172-88. Available from: https://econjournals.com./index.php/ijeep/article/view/13763