عمر فتاح ئ. ., and محمود شهاب م. . “The Role of Visionary Leadership in Achieving Sustainable Marketing: An Analytical Study of the Opinions of a Sample of Workers in Mineral Water Bottling Companies in Sulaymaniyah Governorate, Kurdistan Region-Iraq”. The Scientific Journal of Cihan University– Sulaimaniya, vol. 8, no. 1, July 2024, pp. 268-94, doi:10.25098/8.1.15.