อ้างอิง ของ ทิฟฟานีแอนด์โค

  1. ↑ https://observer.com/2010/04/tiffany-co-to-relocate-headquarters-to-flatiron-district/
  2. ↑ O'Connell, Liam (March 27, 2020). "Tiffany & Co.'s number of retail locations worldwide in 2019, by region". Statista. Statista. สืบค้นเมื่อ May 7, 2020.
  3. 1 2 3 4 5 "Tiffany & Co. (TIF) NYSE - Nasdaq Real Time Price. Currency in USD". Yahoo. Yahoo. May 19, 2020. สืบค้นเมื่อ May 19, 2020.
  4. ↑ "Tiffany company profile". Craft. สืบค้นเมื่อ 2019-08-09.
  5. 1 2 "US SEC: Form 10-K Tiffany & Co". U.S. Securities and Exchange Commission. สืบค้นเมื่อ February 22, 2018.
  6. ↑ "Tiffany & Co". New York Times. สืบค้นเมื่อ 20 January 2016.
  7. ↑ Cohen, Patricia. "Tiffany_and_co". The New York Times.

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