ปานช้างไชยสิทธิ์ ธีรวัฒน์, et al. “The Processing and Monitoring Drought In-Season Economic Crop by Normalized Difference Vegetation Index Anomaly Analysis Tool”. The 25th National Convention on Civil Engineering, vol. 25, July 2020, p. SGI19, https://conference.thaince.org/index.php/ncce25/article/view/684.