Putra, A. N., and I. Nita. “Reliability of Using High-Resolution Aerial Photography (red, Green and Blue Bands) for Detecting Available Soil Water in Agricultural Land”. Journal of Degraded and Mining Lands Management, vol. 7, no. 3, Apr. 2020, pp. 2221-32, doi:10.15243/jdmlm.2020.073.2221.