LVOVS, Aleksandrs; MUTULE, Anna. Customer Dissatisfaction Index and its Improvement Costs. Electrical, Control and Communication Engineering, Riga, Latvia, v. 26, n. 1, p. 21–26, 2010. DOI: 10.2478/v10144-010-0014-2. Disponível em: https://ecce-journals.rtu.lv/ecce/article/view/v10144-010-0014-2.. Acesso em: 5 nov. 2024.