RAHMAN, A. .; RETNO KUSUMASTUTI. Performance Improvement Strategy for Independent Assurance Services at PT Indonesian Classification Bureau (Persero) Belawan Commercial Branch . International Journal of Economics Development Research (IJEDR), [S. l.], v. 4, n. 5, p. 2583–2594, 2023. DOI: 10.37385/ijedr.v5i2.4204. Disponível em: https://journal.yrpipku.com/index.php/ijedr/article/view/4204. Acesso em: 23 jul. 2025.