Terzieva-Angelova, Svetlina. “Conceptual Design of a Model for the Creation and Development of Youth Symphony Orchestras in Bulgaria”. Young Scientific Music and Dance Forum : Conference with international participation, no. 14 (December 29, 2021): 116–128. Accessed May 19, 2024. https://ojs.nbu.bg/index.php/YSMDF/article/view/585.