MARDIANA WAHYUNI; MANURUNG, Romualdus. HUBUNGAN SIFAT SINERGIS HARA N – P DAN PENGARUHNYA TERHADAP KADAR HARA DAUN BIBIT KELAPA SAWIT (Elaeis Guinensis Jacq): Indonesia. Jurnal Ilmiah Pertanian, [S. l.], v. 17, n. 1, p. 43–50, 2020. DOI: 10.31849/jip.v17i1.3275. Disponível em: https://journal.unilak.ac.id/index.php/jip/article/view/3275. Acesso em: 7 apr. 2026.