Shaymaa Hussein Othman and Serwan Latif Haji, “The Role of Sustainable Marketing Strategies in Achieving Competitive Advantage: An Analytical Study of the Opinions of a Sample of Managers in Soft Drink Companies in Erbil”, Tikrit J. Admin. Econ. Sci., vol. 22, no. 73 part 1, pp. 230–258, Mar. 2026.