อ้างอิง ของ ออร์กัญญา

  1. ↑ Orcagna. Catholic Encyclopedia.
  2. ↑ Bryan, Michael (1889). Walter Armstrong & Robert Edmund Graves (ed.). Dictionary of Painters and Engravers, Biographical and Critical (Volume II L-Z). York St. #4, Covent Garden, London; Original from Fogg Library, Digitized May 18, 2007: George Bell and Sons. p. 586. line feed character in |editor= at position 18 (help)CS1 maint: location (link)