Gutama, Soni Andika, et al. “Prediction of Classification of Air Quality Distribution in Java Island Using ANN With Time-Based Feature Expansion and Spatial Analysis”. International Journal on Information and Communication Technology (IJoICT), vol. 10, no. 2, Mar. 2025, pp. 270-86, https://socjs.telkomuniversity.ac.id/ojs/index.php/ijoict/article/view/1035.