1. Evaluation use in nonformal education settings
2. Teaching yourself to teach with objects;Hennigar Shue J.;Journal of Education,1982
3. Children learning with objects in informal learning environments;Paris S.G.;Perspectives on object-centered learning in museums,2002
4. The history of participatory evaluation and current debates in the field
5. Center for Advancement of Informal Science Education (CAISE). 2011. Principal investigator’s guide: Managing evaluation in informal STEM education projects. http://informalscience.org/evaluation/evaluation-resources/pi-guide.