GIZA, W. On the valuation of economic goods. Annales. Etyka w Życiu Gospodarczym, [S. l.], v. 20, n. 5, p. 45–54, 2019. DOI: 10.18778/1899-2226.20.5.04. Disponível em: https://czasopisma.uni.lodz.pl/annales/article/view/4234. Acesso em: 4 maj. 2024.