Dynowska, Joanna, and Henryk Lelusz. “Product Costing and Pricing Methods Applied by Enterprises Within the Warmińsko-Mazurskie Voivodship”. Olsztyn Economic Journal 8, no. 3 (December 9, 2013): 221–233. Accessed August 25, 2024. https://czasopisma.uwm.edu.pl/index.php/oej/article/view/3232.