Saputra, I NYM Yoga, et al. “Analysis of Random Forest, Multiple Regression, and Backpropagation Methods in Predicting Apartment Price Index in Indonesia”. Jurnal Ilmiah Teknik Elektro Komputer Dan Informatika, vol. 7, no. 2, July 2021, pp. 238-4, doi:10.26555/jiteki.v7i2.20997.