. "References." Nurturing and Sustaining Effective Programs in Science Education for Grades K-8: Building a Village in California: Summary of a Convocation. Washington, DC: The National Academies Press, 2009.
Yoon, K.S., Duncan, T., Lee, S.W.-Y., Scarloss, B., and Shapley, K.L. (2007). Reviewing theEvidence on How Teacher Professional Development Affects Student Achievement. Institute of Education Sciences, National Center for Education Evaluation and Regional Assistance, Regional Educational Laboratory Southwest. Washington, DC: U.S. Department of Education. Available: http://ies.ed.gov/ncee/edlabs/regions/southwest/pdf/REL_2007033.pdf.