Mamayunus Karshibaevich Pardaev, Olim Mamayunusovich Pardaev, and Umidjon Normurad Ugli Normuradov. “As An Innovative Factor Of Trade Cluster Concept And Its Theoretical Issues”. The American Journal of Management and Economics Innovations, vol. 3, no. 7, July 2021, pp. 1-6, https://theamericanjournals.com/index.php/tajmei/article/view/218.