Barata, M. A., Edi Noersasongko, Purwanto, and Moch Arief Soeleman. “Improving the Accuracy of C4.5 Algorithm With Chi-Square Method on Pure Tea Classification Using Electronic Nose”. Jurnal RESTI (Rekayasa Sistem Dan Teknologi Informasi), Vol. 7, no. 2, Mar. 2023, pp. 226 -35, doi:10.29207/resti.v7i2.4687.