Wati, A. T., and K. Subekti. “Model Of Nitrogen Distribution In Rice Cultivation (Oryza Sativa) By Using Sri (System Of Rice Intensification) Method”. Jurnal Ilmiah Rekayasa Pertanian Dan Biosistem, vol. 6, no. 2, Sept. 2018, pp. 181-7, doi:10.29303/jrpb.v6i2.82.