TUNG, C.-T.. Note on inventory models with a permissible delay in payments. Yugoslav Journal of Operations Research, [S.l.], v. 24, n. 1, oct. 2016. ISSN 2334-6043. Available at: <http://www.yujor.fon.bg.ac.rs/index.php/yujor/article/view/433>. Date accessed: 16 may 2024.