G Sashikala, MVS Naidu, KV Ramana, KV Nagamadhuri, A Pratap Kumar Reddy, P Sudhakar and C Nageswar Reddy, "Characterization and classification of soils in upland soils of Tatrakallu village of Anantapuramu district in Andhra Pradesh", Chemi journal, Vol.8(2), pp.1491-1498, ISSN/ISBN: 2349-8528. DOI →