“The Influence of Sales Information Systems and Integrated Marketing Communication (IMC) Strategies on Customer Loyalty with the Role of Brand Ambassador as a Mediating Variable at PT Arwinda Tour and Travel Sidoarjo” (2024) Jurnal Bisnis, Ekonomi, Manajemen, dan Kewirausahaan, 2(1), pp. 117–122. doi:10.52909/jbemk.v4i2.183.