Singh, S.P., and Ajay Soni. “AN EOQ INVENTORY MODEL USING RAMP TYPE DEMAND WITH DETERIORATION AND SHORTAGES”. International Journal of Engineering Technologies and Management Research 5, no. 2 (February 28, 2018): 334–345. Accessed April 20, 2024. https://www.granthaalayahpublication.org/ijetmr-ojms/ijetmr/article/view/IJETMR18-CINSP-44.