TRIPATHI, R.P. Inventory model with cash flow oriented and time-dependent holding cost under permissible delay in payments. Yugoslav Journal of Operations Research, [S. l.], v. 23, n. 3, p. 419–429, 2013. DOI: 10.2298/YJOR121029004T. Disponível em: https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/374. Acesso em: 26 aug. 2025.