Pernitiani, N., U. Made, and A. Adrianton. “Pengaruh Pemberian Berbagai Dosis Pupuk Nitrogen Terhadap Pertumbuhan Dan Hasil Tanamanjagung Manis (Zea Mays Saccharata)”. AGROTEKBIS : JURNAL ILMU PERTANIAN (e-Journal), Vol. 6, no. 3, June 2018, pp. 329 -35, http://103.245.72.23/index.php/agrotekbis/article/view/365.