RIZAL, Muhamad. PENGARUH PEMBERIAN PUPUK ROCK PHOSPHATE TERHADAP PRODUKSI TANDAN BUAH SEGAR (TBS) KELAPA SAWIT (Elaeis guineensis. Jacq). Jurnal Ilmiah Pertanian, [S. l.], v. 14, n. 1, p. 61–64, 2018. DOI: 10.31849/jip.v14i1.966. Disponível em: https://journal.unilak.ac.id/index.php/jip/article/view/966. Acesso em: 26 mar. 2026.