อ้างอิง ของ มุทราศาสตร์

  1. 1 2 American Heritage Dictionary of the English Language (4th ed.). Boston: Houghton Mifflin Company. 2000. ISBN 0618082301.
  2. Stephen Friar, Ed. A Dictionary of Heraldry. (Harmony Books, New York: 1987), 183.
  3. Arthur Charles Fox-Davies, A Complete Guide to Heraldry, (Thomas Nelson, 1925).
  4. Iain Moncreiffe of that Ilk & Don Pottinger, Simple Heraldry (Thomas Nelson, 1953).
  5. John Brooke-Little. An Heraldic Alphabet. (Macdonald, London: 1973),2.