1. Anonymous (2001). Tsunami: The Great Waves. www.nws.noaa.gov/om/tsunami.htm.
2. Anonymous (2001). Physics of Tsunamis. .
3. Tsunami Devastates Japanese Coastal Region;Anonymous;Eos Transactions, American Geophysical Union,1993
4. Anonymous (2001). What Cause Tsunamis?, www.nws.noaa.gov/om/tsunami2.htm, p. 1–2.
5. Ayers, R. A., & Cretzler, D. J. (1963). A Resistance Wire Water Level Measurement System. Marine Science Instrumentation, Vol. 2. New York: Instrument Society of America, Plemun Press.