W. Iskandar, A. Muhammad, K. Munibah, and B. Barus, “Application of Multispectral Drone-Based Vegetation Indices for Assessing Growth Conditions in Irrigated Paddy Rice”, J. Il. Tan. Lingk., vol. 27, no. 2, pp. 115–122, Oct. 2025, doi: 10.29244/jitl.27.2.115-122.