CHURLEI, Eduard G. Formation of a system of marketing metrics for assessing the level of customer satisfaction and loyalty. Journal of the Belarusian State University. Economics, [S. l.], n. 1, p. 48–64, 2022. Disponível em: https://journals.bsu.by/index.php/economy/article/view/4511. Acesso em: 18 jul. 2026.