Hanna Arini Parhusip, et al. “Density-Based Spatial Clustering of Applications With Noise (DBSCAN) and Principal Component Analysis (PCA) for Particulate Matter (PM) Anomaly Detection”. Lontar Komputer : Jurnal Ilmiah Teknologi Informasi, vol. 15, no. 02, Oct. 2025, pp. 75-86, doi:10.24843/LKJITI.2024.v15.i02.p01.