Bobirshoh Gaybullayevich Nurillayev. “Oliy ta’limda Vokal Tovush Tizimini Shakllantirishning Nazariy-Uslubiy Optimallashtirish Texnologiyalari”. Science and Education 7, no. 4 (April 24, 2026): 449–461. Accessed April 25, 2026. https://www.openscience.uz/index.php/sciedu/article/view/8756.