Anderson, Frank Marby ; Amos Shartle Hershey (1918) The Bulgarian Revolution of 1885, Handbook for the diplomatic history of Europe, Asia and Africa 1870-1914. Washington DC : National Board for Historical Service, Government Printing Office. pp 119-122
wikisource.org
en.wikisource.org
Chisholm Hugh (editor) Bulgaria/History Encyclopaedia Britannica (11th edition). Cambridge University Press.
