عسلية ف., and صقور م. . “The Effect of Strategic Vigilance on Competitive Performance of Telecommunications Companies Within S.A.R”. Tishreen University Journal- Economic and Legal Sciences Series, vol. 44, no. 3, Aug. 2022, pp. 465-88, https://journal.tishreen.edu.sy/index.php/econlaw/article/view/12243.