S. S. Mishra, S. Rawat, Abhishek Singh, and S. K. Yadav. 2019. “Fuzzified Analysis of Deteriorating Inventory Model With Decreasing Demand and Changing Holding Cost”. Journal of International Academy of Physical Sciences 23 (1):25-40. https://www.iaps.org.in/journal/index.php/journaliaps/article/view/150.