Raharjo, P. M., Rif’an, M. and Sulistyanto, N. (2012) “The Implementation of Feedforward Backpropagation Algorithm for Digit Handwritten Recognition in a Xilinx Spartan-3”, Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 4(2), pp. pp. 17–21. doi: 10.21776/jeeccis.v4i2.106.