References
- Kieff , J. E. and Casbergue , R. M. 2000 . Playful learning and teaching: Integrating play into preschool and primary programs , Boston : Allyn & Bacon .
- Kostelnik , M. J. , Soderman , A. K. and Whiren , A. P. 2004 . Developmentally appropriate curriculum: Best practices in early childhood education, , 3rd ed. , Upper Saddle River , NJ : Pearson, Merrill Prentice Hall .