PREETI NIGAM, DR. S. K. TIWARI. Measuring Customer Satisfaction and Retention in IT Industry Pre-COVID and Post-COVID Using Fuzzy Mathematical Model. Journal of Computational Analysis and Applications (JoCAAA), [S. l.], v. 33, n. 08, p. 5205–5211, 2024. Disponível em: https://www.eudoxuspress.com/index.php/pub/article/view/3181. Acesso em: 13 aug. 2026.