1. Abrahamsson, P., Salo, O., Ronkainen, J., & Warsta, J. (2002). Agile software development methods: Review and analysis (107p). VTT Publication 478.
2. Aftab, S., Nawaz, Z., Anwar, M., Anwer, F., Bashir, M. S., & Ahmad, M. (2018). Comparative analysis of FDD and SFDD. International Journal of Computer Science and Network Security, 18(1), 63–70.
3. Anwer, F., Aftab, S., Waheed, U., & Muhammad, S. S. (2017). Agile software development models tdd, fdd, dsdm, and crystal methods: A survey. International Journal of Multidisciplinary Sciences and Engineering, 8(2), 1–10.
4. Aston, B. (2021). 10 best agile tools for managing projects in 2021. Available at: https://thedigitalprojectmanager.com/agile-tools/. Accessed March 14, 2021.
5. Avlijaš, G. (2020). Modern approach to project management, usage, and success rate of agile methodologies: An evidence from Serbia. In Sinteza 2020-International Scientific Conference on Information Technology and Data Related Research (pp. 154–159). Singidunum University.