Joseph Naayem, Shall this Nation die?, Chaldean Rescue, New York, 1920, p296 online version : "The cause of our flight was Agha Petrus who had written to Mar Shimun at Salmas, advising him to commence the attack on the Turks, who had retired on Kara Tepe, and promising that he would reinforce him with 3,500 men. The attack began. Agha Petrus came two days later with only 300 men. Arrived at Salmas from Schakar Yazi, he retook the road to Urmia, whilst Mar Shimun's men advanced steadily."
Rev. W.A. Wigram (1922). The Cradle of Mankind, life in Eastern Kurdistan, Second Edition. London: A & C Black, Ltd. pp. 218–219.
online version
(in French) Méthy Daniel, L'action des grandes puissances dans la région d'Ourmia (Iran) et les Assyro-Chaldéens: 1917–1918 in Studia Kurdica n°1-
4.5,
5, Paris,1988, ISSN 0765-1074, p86.. online version
Viktor Shklovsky, Russian commissar in Urmia region wrote : " … he governed a certain locality in Turkey and ruined the populace with exorbitant taxes, while residing in America he was sentenced to a term of hard labor in Philadelphia. At the present time he sides with Russia and is our official dragoman. His services are to be used with extreme caution." ZindamagazineArchived 2010-01-16 at the Wayback Machine
Viktor Shklovsky, Russian commissar in Urmia region wrote: "… he governed a certain locality in Turkey and ruined the populace with exorbitant taxes, while residing in America he was sentenced to a term of hard labor in Philadelphia. At the present time he sides with Russia and is our official dragoman. His services are to be used with extreme caution." ZindamagazineArchived 2010-01-16 at the Wayback Machine
Viktor Shklovsky, Russian commissar in Urmia region wrote : " … he governed a certain locality in Turkey and ruined the populace with exorbitant taxes, while residing in America he was sentenced to a term of hard labor in Philadelphia. At the present time he sides with Russia and is our official dragoman. His services are to be used with extreme caution." ZindamagazineArchived 2010-01-16 at the Wayback Machine
Viktor Shklovsky, Russian commissar in Urmia region wrote: "… he governed a certain locality in Turkey and ruined the populace with exorbitant taxes, while residing in America he was sentenced to a term of hard labor in Philadelphia. At the present time he sides with Russia and is our official dragoman. His services are to be used with extreme caution." ZindamagazineArchived 2010-01-16 at the Wayback Machine