Hamam, Maulana, Bambang Pujiasmanto, and dan Supriyono. “Peningkatan Hasil Padi (Oryza Sativa L.) Dan Kadar Zink Dalam Beras Melalui Aplikasi Zink Sulfat Heptahidrat”. Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) 45, no. 3 (January 15, 2018): 243–248. Accessed July 9, 2026. https://journal.ipb.ac.id/jurnalagronomi/article/view/12287.