Umarovich, K. S. . “The Substantiation Of Spiritual And Moral Education As Per Tasawwufi Views Of Najmiddin Kubra”. The Journal of Contemporary Issues in Business and Government, vol. 27, no. 1, Feb. 2021, pp. 3195-8, https://cibgp.com/au/index.php/1323-6903/article/view/784.