Optimizing the Public Satisfaction Index (IKM) to Improve Public Service Quality: A Case Study at the Surabaya Immigration Office. Socious Journal, [S. l.], v. 1, n. 6, p. 1–10, 2024. DOI: 10.62872/4kykxd58. Disponível em: https://nawalaeducation.com/index.php/SJ/article/view/820. Acesso em: 22 apr. 2025.