Fernando Sitorus, A., Bagus Pulunggono, H., Anwar, S., & Nugroho, B. (2024). Diagnosis of Macronutrients in Oil Palm (Elaeis guineensis Jacq.) Using DOP and DRIS Methods. Jurnal Penelitian Kelapa Sawit, 32(2), 83-94. https://doi.org/10.22302/iopri.jur.jpks.v32i2.245