References
- Gombrich, E. H. (1961). Art and illusion. New York: Random House.
- Kosslyn, S. M., Heldmeyer, K. H., & Locklear, E. P. (1977). Children's drawings as data about internal representations. Journal of Experimental Child Psychology, 23, 191–211.
- Lewis, H. P. (1963). Spatial representation in drawing as a correlate of development and a basis for picture preference. Journal of Genetic Psychology, 102, 95–107.
- Lewis, H. P., & Livson, N. (1967). Correlates of developmental level of spatial representation in children's drawings. Studies in Art Education, 8 (2), 46–55.
- Mitchelmore, M. C. (1978). Developmental stages in children's representation of regular solid figures. Journal of Genetic Psychology, 133, 229–239.
- Mitchelmore, M. C. (1980). Prediction of developmental stages in the representation of regular space figures. Journal for Research in Mathematics Education, 11 (2), 83–93.
- Phillips, W. A., Hobbs, S. B., & Pratt, F. R. (1978). Intellectual realism in children's drawings of cubes. Cognition, 6, 15–33.
- Willats, J. (1977). How children learn to draw realistic pictures. Quarterly Journal of Experimental Psychology, 29, 367–382.