Aprianti, Winda, et al. “Perbandingan Elman Recurrent Neural Networks, Backpropagation Neural Networks, Dan Exponential Smoothing Dalam Peramalan Produksi Palawija”. MUST: Journal of Mathematics Education, Science and Technology, vol. 5, no. 2, Dec. 2020, pp. 206-20, doi:10.30651/must.v5i2.6255.