Ningsih, Tuty, Dimas Akbar Ramadhan Lubis, and Saroha Manurung. “KAJIAN BIAYA PEMUPUKAN TANAMAN MENGHASILKAN KELAPA SAWIT (Elaeis Guineensis Jacq) DI DIVISI F KEBUN SEI KALAM PT. ASAM JAWA”. Jurnal Agro Estate 3, no. 2 (December 19, 2019): 97–102. Accessed November 15, 2024. https://ejurnal.itsi.ac.id/index.php/JAE/article/view/68.