Sembodo, Lukman Priyo, David Sukardi Kodrat, and Eric Harianto. 2026. “The Influence Of Service Innovation And Promotional Strategies On Grab User Retention: The Mediating Role Of Purchase Decisions”. JHSS (Journal of Humanities and Social Studies) 10 (1):428-39. https://doi.org/10.33751/jhss.v10i1.85.