SukmawanY., ,S. and ,S. 2016. Peranan Pupuk Organik dan NPK Majemuk terhadap Pertumbuhan Kelapa Sawit TBM 1 di Lahan Marginal. Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy). 43, 3 (Feb. 2016), 242-249. DOI:https://doi.org/10.24831/jai.v43i3.11251.