Faustina, E. and Supijatno, S. (2015) “Optimization of Nitrogen and Phosphorus Fertilizer on Two Years Old of Oil Palm(<i>Elaeis guineensis </i>Jacq.)”, Asian Journal of Applied Sciences, 3(3). Available at: https://ajouronline.com/index.php/AJAS/article/view/2669 (Accessed: 17 August 2022).