Healthcare Service Quality Improvement Using ISO 9001:2015 Gap Analysis at PT Hurip Putera Husada. Jurnal Serambi Engineering, [S. l.], v. 11, n. 3, 2026. Disponível em: http://jse.serambimekkah.id/index.php/jse/article/view/2085. Acesso em: 21 sep. 2026.