Makhamatova Marjona Azamatjonovna. “PROCESSES OF IMPROVEMENT OF UZBEKISTAN FOLK INSTRUMENTS (ON THE EXAMPLE OF THE CHANG INSTRUMENT)”. 2026. International Multidisciplinary Journal for Research & Development, vol. 13, no. 4, May 2026, pp. 297-03, https://ijmrd.in/index.php/imjrd/article/view/5558.