1. Brownlee, J., 2021. Machine Learning Mastery With Python: Understand Your Data, Create Accurate Models and Work Projects End-To-End. 176 pp.
2. Machine Learning and Big Data: Concepts, Algorithms;Dulhare,2020
3. Well separated clusters and fuzzy partitions;Dunn;J. Cybernetics,1974
4. Everitt, B.S., Landau, S., Leese, M., Stahl, D., 2011. Cluster Analysis. Willey. 352 pp.
5. Overview on techniques in cluster analysis;Frades;Bioinform. Methods Clin. Res.,2010