1. Grimm J, Grimm W (1812) Children's and Household Tales. Gottingen.
2. Thompson S (1951) The Folktale. New York: Dryden.
3. Grimm W (1884) Preface. Children's and Household Tales. 3 ed. London: George Bell.
4. The Historic-Geographic Method: Past and Future;C Goldberg;Journal of Folklore Research,1984
5. Sydow CW (1948) Selected Papers on Folkore. Copenhagen: Rosenkilde and Bagger.