Sultonova Gulrux Islomjonovna. “The Power of Vocal Variety: How Tone and Pitch Affect Communication”. Web of Semantics : Journal of Interdisciplinary Science 3, no. 5 (May 15, 2025): 85–87. Accessed July 20, 2025. https://web.semanticjournals.org/index.php/wos/article/view/777.