Prediction of Safety Stock Using Fuzzy Time Series (FTS) and Technology of Radio Frequency Identification (RFID) for Stock Control at Vendor Managed Inventory (VMI)Chamdan Mashuri, Suryono Suryono and Jatmiko Endro SusenoE3S Web Conf., 31 (2018) 11005DOI: https://doi.org/10.1051/e3sconf/20183111005