AbdelAziz , A., AbdelQader , M. and Adam , M. 2021. 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. 1, 2 (Oct. 2021). DOI:https://doi.org/10.56989/benkj.v1i2.638.