Vinita Singh, Kapil Dave, Sanjay Singh, Garima Garg,. “A Deteriorating Inventory Model With Ramp Type Demand and Time Dependent Holding Cost”. Mathematical Statistician and Engineering Applications 71, no. 4 (November 2, 2022): 5693–5770. Accessed May 3, 2024. https://www.philstat.org/index.php/MSEA/article/view/1167.