M.V.S. Naidu, K. Sreedhar Reddy. “Characterization and Classification of Soils in Semi-Arid Region of Chennur Mandal in Kadapa District, Andhra Pradesh”. Journal of the Indian Society of Soil Science, vol. 64, no. 3, Dec. 2016, https://epubs.icar.org.in/index.php/JISSS/article/view/66409.