1. Ackoff, R. L. (1974). The systems revolution. Long Range Planning. Vol. 7, Issue 6. December, 1974. Retrieved on 9 March 2019 from
https://www.sciencedirect.com/science/article/abs/pii/0024630174901277?via%3Dihub
.
2. Adolphsen, S. (2018). Three myths about the welfare cliff. The Foundation for Government Accountability.
3. Annie E. Casey Foundation. (2010). Early warning! Why reading by the end of third grade matters.
4. Barba, L. A. (2018). Terminologies for reproducible research. The George Washington University. Retrieved on 8 March 2019 from
https://arxiv.org/pdf/1802.03311.pdf
.
5. Bitsko, R., et al. (2016). Health care, family, and community factors associated with mental, behavioral, and developmental disorders in early childhood. Center for Disease Control: Morbidity and Mortality Weekly Report (MMWR). Retrieved on 9 March 2019.