Firdaus, Jonni, Usman Ahmad, BudiastraI Wayan, and SubrataI Dewa Made. 2024. “Macro-Nutrient Prediction of Paddy Field Soil Using Artificial Neural Network and NIR Spectroscopy”. Jurnal Keteknikan Pertanian 12 (2), 242-58. https://doi.org/10.19028/jtep.012.2.242-258.