HA, TRAN THI HOANG; ANH, PHAM TUAN. Management Strategy for Business Sustainability Under Macro Effects In An Econometric Model – Case of PKN Orlens in Oil and Gas Industry in Poland. The journal of contemporary issues in business and government, [S. l.], v. 27, n. 2, p. 967–971, 2021. Disponível em: https://www.cibgp.com/index.php/1323-6903/article/view/1005. Acesso em: 10 oct. 2025.