بلندگوی شیپوری (Persian Wikipedia)

Analysis of information sources in references of the Wikipedia article "بلندگوی شیپوری" in Persian language version.

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peavey.com

  • Murray, John (2000). "The Quadratic Throat Waveguide: A white paper on an invention by Charles E. Hughes of Peavey Electronics Corporation" (PDF). Peavey Architectural Acoustics. Archived from the original (PDF) on March 3, 2016. Retrieved April 21, 2013. {{cite journal}}: Cite journal requires |journal= (help)

web.archive.org

  • Murray, John (2000). "The Quadratic Throat Waveguide: A white paper on an invention by Charles E. Hughes of Peavey Electronics Corporation" (PDF). Peavey Architectural Acoustics. Archived from the original (PDF) on March 3, 2016. Retrieved April 21, 2013. {{cite journal}}: Cite journal requires |journal= (help)