Karur, Srinatha, and M.V. Ramana Murthy. “Data Preparation and Analysis for Andhra Pradesh Clusters”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 7, no. 1 (October 11, 2013): 4–16. Accessed December 6, 2025. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/1140.