DETERMINE THE OPTIMAL NUMBER OF SPARE PARTS USING FUZZY QUEUING MODEL WITH LIMITED SOURCE . Singaporean Journal of Business Economics and Management, [S. l.], v. 3, n. (5), p. 1–9, 2014. Disponível em: https://www.singaporeanjbem.com/index.php/SJBEM/article/view/242. Acesso em: 24 jun. 2026.