H. Yanti, M. A. . Erfareta, A. Anggraeni, A. Maulana, and M. R. . Hibatullah, “NPK (Nitrogen, Phosporus and Potassium) Level Detection Tool in Palm Leaf Organic Fertilizer based on Internet of Things (IoT) using Soil NPK SensorIntegration of Multi-criteria Decision Making Methods for Tobacco Land Assessment: A Case Study Using SMART, TOPSIS, and AHP”, JSAI, vol. 8, no. 2, pp. 455–463, Jun. 2025.