HARIADI, B.; SASTROHARTONO, H.; KRISDIARTO, A. W.; SUKARMAN, S.; PRIMANANDA, S.; SAGORO, T. H. The Prediction of Nitrogen, Phosphate, and Potassium Contents of Oil Palm Leaf Using Hand-Held Spectrometer. Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering), [S. l.], v. 13, n. 1, p. 71–81, 2024. DOI: 10.23960/jtep-l.v13i1.71-81. Disponível em: https://jurnal.fp.unila.ac.id/index.php/JTP/article/view/7612. Acesso em: 26 nov. 2025.