Thompson, Stith. The Folktale. University of California Press. 1977. pp. 101-102, 179. Thompson, Stith (1977). The Folktale. University of California Press. ISBN0-520-03537-2.
Thompson, Stith. The Folktale. University of California Press. 1977. p. 102. Thompson, Stith (1977). The Folktale. University of California Press. ISBN0-520-03537-2.