Karol, M. KlimczakM. KlimczakKarolEwelina Zarzycka2025-07-252025-07-2520122658-0845https://repozytorium.kozminski.edu.pl/handle/item/1412CC-BY-NC-ND-4.0refining sectorfinancial reportingrefining sectorfinancial reportingFinancial reporting and inventory valuation in the refining sector: a case study of PKN OrlenFinancial reporting and inventory valuation in the refining sector: a case study of PKN OrlenArticle