V.L. Ciayadi Tjia et al. 2026. The Effect Of E-Commerce Adoption and Seo On Business Sustainability Through Marketing Performance: A Study Of Zara E-Commerce Consumers In Makassar City. International Journal of Management and Business Economics. 5, 1 (Oct. 2026), 220–232. DOI:https://doi.org/10.58540/ijmebe.v5i1.2507.