ArdiansyahM., NugrohoB. and Sa’diyahK. (2022) “Estimating Chlorophyll and N Content in Corn Leaves Based on Chlorophyll Content Index: Estimasi Kadar Klorofil Dan Kadar N Daun Jagung Menggunakan Chlorophyll Content Index”, Jurnal Ilmu Tanah dan Lingkungan, 24(2), pp. 53-61. doi: 10.29244/jitl.24.2.53-61.