Marginal cost analysis approach to production engineering enterprises. Economics and region, [S. l.], n. 3(58), p. 132–140, 2018. DOI: 10.26906/EiR.2016.3(58).1233. Disponível em: https://ojs35.nupp.edu.ua/eir/article/view/1233. Acesso em: 23 dec. 2025.