Matossian RM, Thaddeus J, Garabedian GA (January 1963). "Outbreak of epidemic typhus in the northern region of Saudi Arabia". The American Journal of Tropical Medicine and Hygiene. 12: 82–90. doi:10.4269/ajtmh.1963.12.82. PMID13933690.
Matossian RM, Thaddeus J, Garabedian GA (January 1963). "Outbreak of epidemic typhus in the northern region of Saudi Arabia". The American Journal of Tropical Medicine and Hygiene. 12: 82–90. doi:10.4269/ajtmh.1963.12.82. PMID13933690.
Renvoise A, Raoult D (2013-01-01), Magill AJ, Hill DR, Solomon T, Ryan ET (eds.), "61 - Epidemic Louse-borne Typhus", Hunter's Tropical Medicine and Emerging Infectious Disease (Ninth Edition), London: W.B. Saunders, pp. 535–538, ISBN978-1-4160-4390-4, retrieved 2023-10-31