ABDEL KHALEQ ISMAIL, D. H.; KARIM RADI FAIROUZ AL-ARAJI, A. Sales tax and its impact on the profitability of telecommunications companies using price elasticity of demand. Baghdad College of Economic Sciences University Journal (BCESUJ), [S. l.], v. 67, n. 1, p. 118–144, 2022. Disponível em: https://ojs.baghdadcollege.edu.iq/index.php/BCESUJ/article/view/106. Acesso em: 12 sep. 2026.