SIRAIT, B. A. .; MANURUNG, A. I. .; SABRINA, R. . Pengaruh Perlakuan EM4 dan NPK terhadap Kandungan Hara NPK Daun Kelapa Sawit di Pre-nursery. Jurnal Penelitian Bidang Ilmu Pertanian, [S. l.], v. 19, n. 2, p. 20–23, 2021. Disponível em: https://lldikti1.kemdikbud.go.id/jurnal/index.php/bip/article/view/97. Acesso em: 7 oct. 2024.