On Friday, October 11, 2024, a lecturer at STIE Krakatau, Ryan Firdiansyah Suryawan. S.E., M.M, has conducted a closed examination for the doctoral program in management, Faculty of Economics and Business, Dr. Soetomo University, with a dissertation title: Company Strategy in Increasing Company Value Through Customer Loyalty at Umrah Travel Agencies in Jakarta, Bogor, Depok and Bekasi.
