Nuryenti I, Sulistyani DP, Bernas SM. Kandungan Hara N, P, K pada Gawangan dan Jalan Panen Perkebunan Kelapa Sawit. J. Lahan Suboptimal [Internet]. 2018Mar.22 [cited 2024Apr.26];5(2):219-24. Available from: https://jlsuboptimal.unsri.ac.id/index.php/jlso/article/view/180