K. Sultan, S. Akram, S. Abdulhaliq, D. Jamal, and R. Saleem, “A Strategic Approach to the Consumer Perception of Brand on the Basis of Brand Awareness and Brand Loyalty: A Comparative Analysis of Coke & Pepsi Brands in Erbil KRI”, IJRBS, vol. 8, no. 3, pp. 33–44, May 2019.