Suyatna, F. D., Priyanto Priyanto, J. Istiantoro, and M. Sadikin. “Oxidant and Antioxidant Status of Police Officer in the City and Rural Area”. Medical Journal of Indonesia 13, no. 2 (May 1, 2004): 77-80. Accessed February 8, 2023. https://mji.ui.ac.id/journal/index.php/mji/article/view/132.