Beta signal activity analysis using Power Spectra Density (PSD) algorithm with murrotal surah al-Fatihah stimulation on adolescent anxiety. Journal of Holistic Medical Technologies (JHMT), [S. l.], v. 1, n. 1, p. 24–30, 2024. Disponível em: https://journal.innoscientia.org/index.php/jhmt/article/view/27.. Acesso em: 24 aug. 2026.