MATTHEW RAMANDRI, Andreas; SUSANTO, Sani; YUSUF W, Yogi. Proposed Service Quality Improvement at Aya Travel using SERVQUAL Method and Importance Performance Analysis. Jurnal Improsci, [S. l.], v. 1, n. 6, p. 297–305, 2024. DOI: 10.62885/improsci.v1i6.309. Disponível em: https://annpublisher.org/ojs/index.php/improsci/article/view/309. Acesso em: 24 jul. 2026.