• Child, Francis James, ed. The English and Scottish Popular Ballads. 5 vols. New York: Dover, 2003.

• Taylor, David. Introduction, Sixty English Literary Ballads. Ed. Hisayo Nakashima, et. al. Kyushu UP, 2002.

• Yamanaka, Mitsuyoshi. The Twilight of the British Literary Ballad in the Eighteenth Century. Kyushu UP, 2001.

• Laws, Jr., G. Malcolm. The British Literary Ballad: A Study in Poetic Imitation. Southern Illinois UP, 1972.

• Ehrenpreis, Anne Henry, ed. The Literary Ballad. London: Edward Arnold, 1966.

• Friedman, Albert B. The Ballad Revival: Studies in the Influence of Popular on Sophisticated Poetry. U of Chicago P, 1961.

• Internet Sacred Text Archive (http://www.sacred-texts.com/index.htm)

• The CHILD BALLADS Project: Recorded Sources of The English and Scottish Popular Ballads(http://thechildballads.com/)
  

• Folk Music of England, Scotland, Ireland, Wales and America (http://www.contemplator.com/folk.html)

For the detail of the References, please make an access to The Ballad Society of Japan,  http://www.j-ballad.com/