1.
Sunit Kumar, Sushil Kumar, Rachna Kumari. An EPQ model with two-level trade credit and multivariate demand incorporating the effect of system improvement and preservation technology. Malaya J. Mat. [Internet]. 2021 Jan. 1 [cited 2024 Jul. 16];9(01):438-4. Available from: https://www.malayajournal.org/index.php/mjm/article/view/1055