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