Kahar, Kahar, Lilis Sulistyorini, and Soedjajadi Keman. “Nitrogen Dioxide Concentrations in the Air in Increasing Superoxide Dismutase Enzyme and Malondialdehyde Serum Levels in Bus Terminal Officers”. JURNAL KESEHATAN LINGKUNGAN 13, no. 3 (July 31, 2021): 166–173. Accessed August 8, 2025. https://e-journal.unair.ac.id/JKL/article/view/26855.