SABRINA GHUSYI NOVA; SUKARIS. Service Quality as a Strategic Driver of Competitive Advantage: A SERVQUAL-Based Empirical Study in the Steel Industry. Al-Kharaj: Journal of Islamic Economic and Business, [S. l.], v. 8, n. 1, 2026. DOI: 10.24256/kharaj.v8i1.9801. Disponível em: https://ejournal.iainpalopo.ac.id/index.php/alkharaj/article/view/9801. Acesso em: 13 mar. 2026.