Ikhsan Maulidi et al. 2026. Average-based fuzzy time series for forecasting blood bag availability: Implications for health resilience and emergency preparedness in Banda Aceh, Indonesia. International Journal of Applied Mathematics, Sciences, and Technology for National Defense. 4, 1 (Apr. 2026), 1–12. DOI:https://doi.org/10.58524/app.sci.def.v4i1.1138.