8Barrows, H. S. : Problem - based Learning in Medicine and Beyond: A Brief Overview, in Wilkerson, LuAnn & Wire H. Gijselaers (eds.) (1996) : Bringing Problem- Based Learning to Higher Education: Theory and Practice, San Francisco: Jossey - Bass, New Directions for Teaching and Learning no. 68, pp. 3 - 12.
9Crosthwaite, C., Cameron, I., Lant, P., Litster, J. (2006): "Balancing Curriculum Processes and Content in a Project Centred Curriculum In Pursuit of Graduate Attributes", in: Education for Chemical Engineers, March 2006, Trans IChemE, Part D, no. 1, pp. 39 - 48 http://www. icheme. org/ECEsamplepaper. pdf
10Dochy, F., Segers, M., Van den Bossche, P., Gijbels, D. (2003): Effects of Problem- Based Learning: A Meta- Analysis, in: learning and Instruction, October 2003, vol. 13, no. 5, pp. 553 - 568.
7Morales, T. M. , E. Bang and T. Andre, A One-year Case Study: Understanding the Rich Potential of Pro- ject-based Learning in a Virtual Reality Class for High School Students[J]. Journal of Science Education and Technology,2013,22(5) : 791-806.
8Mettas, A.C. and C. C. Constantinou, The Technology Fair. a project-based learning approach for enhancing problem solving skills and interest in design and technol- ogy education[J]. International Journal of Technology and Design Education, 2007,18(1) : 79-100.
9Robinson, J. K. , Project-based learning., improving student engagement and performance in the laboratory [J]. Analytical and Bioanalytical Chemistry, 2013, 405 (1) : 7-13.
10Lee, D. , Y. Huh and C. M. Reigeluth, Collaboration, intragroup conflict, and social skills in project-based learning[J]. Instructional Science, 2015, 43 (5): 561- 590.
