Georgieva Fileva – Ruseva, Krasimira. “FOLK TRADITIONS AND CUSTOMS REFLECTED IN AN ELECTRONIC MUSIC TEXTBOOK FOR THE 7TH GRADE OF THE GENERAL EDUCATION SCHOOL IN BULGARIA”. KNOWLEDGE - International Journal 55, no. 5 (December 16, 2022): 897–903. Accessed September 23, 2026. https://ojs.ikm.mk/index.php/kij/article/view/5750.