B.MURALIDHARA REDDY, et al. “MAPPING OF SAND MINING AREAS USING REMOTE SENSING AND GIS: A CASE STUDY IN PARTS OF SWARNAMUKHI RIVER BED, CHITTOOR DISTRICT, ANDHRA PRADESH”. The Bioscan, vol. 15, no. 1, Apr. 2021, pp. 1-4, https://thebioscan.com/index.php/pub/article/view/547.