Hartono, A. et al. 2021. Dynamics of Nitrogen Release by Four Types of Urea in Flooded Conditions: Dinamika Pelepasan Nitrogen Empat Jenis Pupuk Urea Pada Kondisi Tanah Tergenang. Jurnal Ilmu Tanah dan Lingkungan. 23, 2 (Oct. 2021), 66–71. DOI:https://doi.org/10.29244/jitl.23.2.66-71.