Pushpendra Kumar, Purvi J. Naik, A. K. Malik. “An Improved Inventory Model for Decaying Items With Quadratic Demand and Trade Credits”. Forest Chemicals Review (April 15, 2022): 1848 -. Accessed May 19, 2024. http://www.forestchemicalsreview.com/index.php/JFCR/article/view/841.