NingsihEltis Panca, ,Sudradjat, and ,Supijatno. “Optimasi Dosis Pupuk Kalsium Dan Magnesium Pada Bibit Kelapa Sawit (Elaeis Guineensis Jacq.) Di Pembibitan Utama”. Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) 43, no. 1 (June 30, 2015): 81-88. Accessed November 22, 2024. https://journal.ipb.ac.id/index.php/jurnalagronomi/article/view/9596.