Logistics Optimization Through Composite Payday Installment in Favor of Requisite Ultimatum Vacillating Carrying Cost and Gradual Degeneration Under Non-stocked and Continuous Circumstances Using Hexagonal Fuzzy Number. (2026). The Scientific Temper, 17(01), 5409-5416. https://doi.org/10.58414/SCIENTIFICTEMPER.2026.17.1.02