Omaima Khalil Mohammed Ahmed, “Impact of Intellectual Capital Investment on Sustainable Competitive Advantage in Sudanese Pharmaceuticals”, MEJELSS, vol. 2, no. 1, pp. 48–64, Feb. 2026, Accessed: Mar. 01, 2026. [Online]. Available: https://mideastjournals.com/index.php/mejelss/article/view/39