1. Abt, C. C. 1970. Serious Games. The Viking Press. New York City, NY: St Edition.
2. Abt, C. C. 1987. Serious Games. London: University press of America.
3. Adams, G. L., and S. Engelmann. 1996. Research on Direct Instruction: 25 Years Beyond DISTAR. ERIC.
4. An overview of game-based learning in building services engineering education
5. All ENTER Consortium members. 2019. “Engineering Educators’ Pedagogical Training in Europe Russia and Kazakhstan: background best practices challenges and opportunities.” http://erasmus-enter.org/files/r_1.3_-_best_practices_of_pedagogical_education_for_engineering_teachers__(e-book).pdf.