Nadiya, Ulfah, et al. “Acute Effects of Methadone on Neural Oscillations: An EEG Study of Theta, Alpha, Beta Power, and Frontal Alpha Asymmetry in Opioid Rehabilitation Patients”. Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics, vol. 7, no. 2, Apr. 2025, pp. 221-3, https://doi.org/10.35882/ijeeemi.v7i2.64.