Navigating Karachi’s Online Food Delivery Boom: Investigating the Impact of Service Speed, Cuisine Variety, and Promotional Offers on Customer Retention. Annual Methodological Archive Research Review, [S. l.], v. 4, n. 4, p. 57–65, 2026. DOI: 10.66021/. Disponível em: https://www.amresearchjournal.com/index.php/Journal/article/view/1967. Acesso em: 13 oct. 2026.