“Spatial Distribution of SO2 and NO2 in Bogor City’s Air via Passive Sampling Method”. ALKIMIA : Jurnal Ilmu Kimia dan Terapan 8, no. 1 (February 29, 2024): 15–27. Accessed August 23, 2025. https://jurnal.radenfatah.ac.id/index.php/alkimia/article/view/30093.