PERFORMANCE MEASURE OF MULTIPLE-CHANNEL QUEUEING SYSTEMS WITH IMPRECISE DATA USING GRADED MEAN INTEGRATION FOR TRAPEZOIDAL AND HEXAGONAL FUZZY NUMBERS. Journal of Computational Innovation and Analytics (JCIA), [S. l.], v. 1, n. 2, p. 1–13, 2022. DOI: 10.32890/jcia2022.1.2.1. Disponível em: https://www.educationmalaysia.co.uk/index.php/jcia/article/view/15197. Acesso em: 10 nov. 2025.