1. Masyutin A.A. “Credit scoring based on social network data”, Business Informatics, No. 3(33), pp. 15–23.
2. Investopedia, see http://www.investopedia.com/terms/c/credit_scoring.asp.
3. Investopedia, see http://www.investopedia.com/terms/f/ficoscore.asp
4. TransUnion, see https://www.transunion.ca/credit-score.
5. Rob Schapire, Machine Learning Algorithms for Classification, Princeton University, see http://www.cs.princeton.edu/∼schapire.