Iskandar, Wahyu, et al. “Application of Multispectral Drone-Based Vegetation Indices for Assessing Growth Conditions in Irrigated Paddy Rice”. Jurnal Ilmu Tanah Dan Lingkungan, vol. 27, no. 2, Oct. 2025, pp. 115-22, https://doi.org/10.29244/jitl.27.2.115-122.