May 10, 1954
Letter from Mohammad Emin Bugra, Former Deputy Chairman of Xinjiang Province, to Yolbars Khan, Chairman of the Office for the Xinjiang Provincial Government
In a letter to Yolbars Khan, Mohammad Emin Bugra call for the Republic of China to "take a benign stance in supporting Xinjiang’s independence."
August 04, 1955
Letters from Kazak Refugees in Turkey to Yolbars Khan
Refugees from Xinjiang, writing from Turkey, ask for Yolbars Khan for assistance.
July 16, 1956
Report and Recommendations by Yolbars Khan on Uighur and Kazak Refugees in the Middle East
Yolbars Khan reports on the conditions of refugees from Xiniiang in Saudi Arabia, Turkey, Kashmir, and Pakistan, including the rival groups led by Isa Yusuf Alptekin and Emin Bugra.
June 14, 1969
Letter from Mohammad Sabiq, Special Agent in Afghanistan, to Yolbars Khan
Mohammad Sabiq describes his travels through Saudi Arabia, Jordan, and Iran and the fundraising to take care of refugees from Xinjiang,