FAROUK ABDELNABI HASSANEIN ATTAALLA. AMADEUS, SABRE, AND GALILEO AS PIONEER BOOKING SYSTEMS: A CRITICAL EVALUATION IN LIGHT OF TRAINING AND FIELD EXPERIENCE IN THE MIDDLE EAST 2011-2017. International Journal on Recent Trends in Business and Tourism (IJRTBT), [S. l.], v. 1, n. 3, p. 21-28, 2017. Disponível em: https://ejournal.lucp.net/index.php/ijrtbt/article/view/265. Acesso em: 11 may. 2024.