The impact of strategic vigilance on achieving competitive advantage : A field study on commercial banks operating in El-Obeid city. Ibn Khaldoun Journal for Studies and Researches, فلسطين, v. 1, n. 2, 2021. DOI: 10.56989/benkj.v1i2.638. Disponível em: https://www.benkjournal.com/index.php/benkj/article/view/638. Acesso em: 6 apr. 2026.