“Secrets Of Achieving Easy Performance On The Trombone (Based On The Pedagogical Experiences Of B. Fayziev)”. Pedagogical Cluster-Journal of Pedagogical Developments 2, no. 10 (October 25, 2024): 165–169. Accessed November 6, 2024. https://euroasianjournals.org/index.php/pc/article/view/534.