K. Kalaiarasi, M.Sumathi, S.Daisy. Solutions to Fuzzy Inventory Model with Fuzzy Demand Rate Using Heptagonal Fuzzy Numbers. Annals of RSCB [Internet]. 2021Apr.9 [cited 2024Apr.28];:1442-54. Available from: https://annalsofrscb.ro/index.php/journal/article/view/2651