1. Arora, S., & Srivastava, A. K. (2020). Teacher and professional ethics: In present perspective. In P. K. Varshney, S. A. W. Shah, & D. K. Sharma (Eds.), Human Values and Professional Ethics (pp. 142–148). Govt. Raza P.G. College.
2. Atıcı, B., & Yürük, S. E. (2017). The effect of digital story based values education materials on students’ value acquisition. Trakya Journal of Education, 7(1), 56–74.
3. Başbay, A. (2005). The effects of project based learning approach supported by layered curriculum on learning process. Ege Journal of Education, 6(1), 95–116.
4. Bower, M., & Richards, D. (2006). Collaborative learning: Some possibilities and limitations for students and teachers. In L. Markauskaite, P. Goodyear, & P. Reimann (Eds.), Who’s Learning? Whose Technology?: Proceedings of the 23rd Annual Conference of the Australasian Society for Computers in Learning in Tertiary Education (vol. 1, pp. 79–89). Sydney University Press.
5. Braun, B., & Kahn, E. B. (2019). Teaching history of mathematics: A dialogue. Journal of Humanistic Mathematics, 9(1), 317–325. https://doi.org/10.5642/jhummath.201901.19.