Quynh Hoa, N. and Jang, Y. 2026. SPECTRAL FLUCTUATION ANALYSIS REVEALS VARIATIONIN CICADA ADVERTISEMENT-SONG STRUCTURES. HNUE Journal of Science: Journal of Natural Sciences. 71, 2 (Jun. 2026), 82–92. DOI:https://doi.org/10.18173/2354-1059.2026-0023.