Bobirshoh Gaybullayevich Nurullayev. 2026. “TEACHING VOCAL PERFORMANCE TO NINTH-GRADE STUDENTS OF A SPECIALIZED ART SCHOOL: OPPORTUNITIES FOR EXPANDING VOCAL RANGE THROUGH THEORETICAL KNOWLEDGE”. European Review of Contemporary Arts and Humanities 2 (11):12-17. https://claritaslumen.org/index.php/ercah/article/view/204.