ANGGI PRANATA. Optimizing Health Service Delivery: Addressing Non -Value Added Activities through Lean Six Sigma. Indonesia Accounting Research Journal, [S. l.], v. 11, n. 3, p. 173–183, 2024. Disponível em: https://journals.iarn.or.id/index.php/Accounting/article/view/255. Acesso em: 30 apr. 2026.