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*[http://www.commandline.net/Radio%20Frequency%20Chart1.htm Radio Frequency Chart]
* Horzepa, Stan, "''[http://www.arrl.org/news/features/2003/10/10/1/ Surfin': Who Invented Radio]?''". Arrl.org. [[10 OctoberOktober]] [[2003]].
* [http://www.radiomerkezi.com Online Radio]
* IAteacher: [http://www.iateacher.com/Lesson%206/L6P1-Title.htm Interactive Explanation of Radio Receiver Construction]
* U.S. Supreme Court, "''[http://caselaw.lp.findlaw.com/scripts/getcase.pl?court=us&vol=320&invol=1 Marconi Wireless Telegraph co. of America v. United States]''". 320 U.S. 1. Nos. 369, 373. Argued [[9 April]]-12, 1943. Decided [[21 JuneJuni]] [[1943]].
* [http://xroads.virginia.edu/~1930s2/Radio/day/radio.html 'A Day In Radio' from The University of Virginia's Department of American Studies]
*[http://www.locutoramariana.es.tl Radio Announcer]