1. D.C. Reddy (2005). “Biomedical Signal Processing-Principles and Techniques”. Tata McGraw-Hill Publishing Company Limited, New Delhi. ISBN-13:978-0-07-058388-7. pp-1–411.
2. https://en.wikipedia.org/wiki/Hans_Berger. Referred on 20th, October, 2020.
3. Berger’s invention has been described "as one of the most surprising, remarkable, and momentous developments in the history of clinical neurology." David Millet (2002), "The Origins of EEG" International Society for the History of the Neurosciences (ISHN). Referred on 20th, October, 2020.
4. Tudor, M.; Tudor, L.; Tudor, K. I. (2005). "Hans Berger (1873-1941)--the history of electroencephalography". Acta Medica Croatica : Casopis Hravatske Akademije Medicinskih Znanosti. 59 (4): 307–13. PMID 16334737. Referred on 20th, October, 2020.
5. A Demonstration on Man of Electromotive Changes accompanying the Heart's Beat