A Multi Server Fuzzy Feedback Queuing Model With Encouraged Arrivals, Revoked And Retaining Back Out Customers. Journal of Pharmaceutical Negative Results, [S. l.], p. 256–261, 2023. DOI: 10.47750/pnr.2023.14.02.31. Disponível em: https://pnrjournal.com/index.php/home/article/view/7140.. Acesso em: 8 jun. 2026.