Cherevko K, Zhyshkovych M, Kalyn R, Komarevych I. Master class as a leading pedagogical technology in professional improvement of individual performing qualities of singers. AmazInv [Internet]. 17 de diciembre de 2021 [citado 18 de noviembre de 2025];10(47):282-9. Disponible en: https://amazoniainvestiga.info/index.php/amazonia/article/view/1829