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Observations on Bulgarian affairs Bath John Alexander Thynne (The Marquis of Bath) MacMillan, London 1880 EN
On the Monastir Road Corey Herbert National Geographic 1917
Origins of Intelligence Services.; The Ancient Near East, Persia, Greece, Rome, Byzantium, the Arab Muslim Empires, the Mongol Empire, China, Muscovy Dvornik Francis Rutgers University Press, New Brunswick, New Jersey 1974 EN
Ottoman Bulgaria in the First Tanzimat Period — The Revolts in Nish (1841) and Vidin (1850) Pinson Mark Middle Eastern Studies, Vol. 11, No 2 1975 EN