ABD AOUN, Muhammad Abd Zaid; ABBAS, Muhammad Fadel. The lowest marketing cost for tourists: an applied study of a sample of travel and tourism companies in the city of Baghdad. Al-Ghary Journal of Economic and Administrative Sciences, Kufa, Najaf, IRAQ, v. 20, n. 00, p. 2318–2343, 2024. DOI: 10.36325/ghjec.v20i00.17144. Disponível em: https://journal.uokufa.edu.iq/index.php/ghjec/article/view/17144. Acesso em: 25 aug. 2026.