NARENDRA SUKMA, F. B. S. A.; PURNOMO, Y.; SODIKIN, M. Enhancing Customer Loyalty Through Service Quality: A Congruity Value Theory Perspective in Indonesian Postal Services. IJUS | International Journal of Umranic Studies , [S. l.], v. 7, n. 2, p. 7–14, 2024. Disponível em: https://unissa.edu.bn/journal/index.php/ijus/article/view/934. Acesso em: 23 feb. 2025.