Ubaydullayev Ismoiljon Umarjon o'g'li (2026) “IMPROVING THE METHODOLOGY FOR ASSESSING THE SHADOW ECONOMY TO INCREASE LOCAL BUDGET REVENUES”, IMRAS, 9(6), pp. 226–245. Available at: https://journal.imras.org/index.php/sps/article/view/2969 (Accessed: 23 October 2026).