COCA, Gabriela. 2012. “FORMAL STRUCTURE AND POLYPHONIC TECHNIQUE IN ZOLTÁN KODÁLY’S “SEVEN EASY CHORAL PIECES FOR CHILDREN"”. Studia Universitatis Babeș-Bolyai Musica 57 (2):223-34. https://studia.reviste.ubbcluj.ro/index.php/subbmusica/article/view/8932.