IKA SILVIA RAMADANI; RINA FILIA SARI; HENDRA CIPTA. FUZZY MAMDANI FORECASTING OF BLOOD BAG SUPPLY AT INDONESIAN RED CROSS BLOOD IN DELI SERDANG REGENCY UNIT. INFOKUM, v. 10, n. 5, p. 361-367, 31 Dec. 2022.