“Mapping the Landscape of Metro Service Quality Research: A Comprehensive SPAR-Based Systematic Review and MetaAnalysis”. Journal of Asia Entrepreneurship and Sustainability 22, no. 8s (October 14, 2026): 06–17. Accessed October 29, 2026. https://mail.asiaentrepreneurshipjournal.com/index.php/jaes/article/view/732.