Tham khảo Gà_Leghorn

  • American Standard of Perfection. AMERICAN POULTRY ASSOCIATION, INC. 1998. p. 114.
  • Crawford, RD (1990) Poultry breeding and genetics Amsterdam; New York: Elsevier. ISBN 978-0-444-88557-9 p. 46
  • Wright, Lewis; Sidney Herbert Lewer [1911?] Wright's book of poultry, revised and edited in accordance with the latest poultry club standards London; New York; Toronto; Melbourne: Cassell. pp. 411–422