[1]
D. P. Sinaga, E. Dwi Purbajanti, and B. Adi Kristanto, “The Effect of Magnesium, Boron, and NPK Fertilizer on the Growth of Pre-Nursery Oil Palm (Elaeis guineensis Jacq)”, Petrop, vol. 7, no. 2, pp. 262-271, Dec. 2020.