Pamungkas, D. F., A. R. E. Najaf, and R. Permatasari. “House Price Prediction in Surabaya Using Backpropagation Neural Network”. JURNAL TEKNOLOGI DAN OPEN SOURCE, Vol. 8, no. 2, Nov. 2025, pp. 623 -28, doi:10.36378/jtos.v8i2.4829.