Athraa Mahmoud Rasheed Manukh and Riyadh Shahadha Hussein Shahadha, “The Role of Organizational Immunity in Enhancing Competitive Advantage: An Analytical Study at the College of Administration and Economics, Tikrit University”, Tikrit J. Admin. Econ. Sci., vol. 22, no. 73 part 2, pp. 144–165, Mar. 2026.