AL TAHER, Ibrahim Ahmed; AL BASHIR, Abtahal Mohammed Ahmed. (The Impact of Functional Information System on Competitive Advantage (An Applied Study on Omdurman National Bank- Sudan. Journal of Economic, Administrative and Legal Sciences, New Mexico, United States, v. 3, n. 3, p. 60–44, 2019. DOI: 10.26389/AJSRP.E131118. Disponível em: https://ajsrp.ojsexpert.com/index.php/jeals/article/view/698. Acesso em: 20 dec. 2025.