THE EFFECT OF CUSTOMER COMPLAINT HANDLING PRACTICES ON CUSTOMER SATISFACTION IN ETHIOPIAN ELECTRIC UTILITY CUSTOMER SERVICE CENTER. International Journal of Management (IJM), [S. l.], v. 15, n. 1, p. 1–14, 2024. Disponível em: https://lib-index.com/index.php/IJM/article/view/IJM_15_01_001.. Acesso em: 21 oct. 2025.