TobingJeremia C.L., Suwarto, and Sopyan Zaman. “Optimum Nitrogen Fertilizer Dosage for Composite and Hybrid Varieties of Maize”. Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) 50, no. 2 (August 29, 2022): 139-146. Accessed November 22, 2024. https://journal.ipb.ac.id/index.php/jurnalagronomi/article/view/40199.