Zulkarnain, Iskandar. “Leptospirosis at Dr. Cipto Mangunkusumo and Persahabatan Hospitat Review of 104 Cases”. Medical Journal of Indonesia 9, no. 4 (October 1, 2000): 271-5. Accessed May 4, 2024. http://mji.ui.ac.id/journal/index.php/mji/article/view/625.