- In this Burmese name, Sao is an honorific.
Sao Edward Yang Kyein Sai (Chinese: 杨振材; pinyin: Yáng Zhèncái), Saopha of Kokang (1918–1971, at Lashio) was the traditional ruler (saopha) of the Burmese state of Kokang from 1949, at the death of his father, saopha Sao Yang Wen Pin, until he abdicated in 1959.
Yang's half-sister, Olive Yang, was a prominent opium warlord, recruited by Khin Nyunt in the late 1980s to help broker ceasefires in Burma with ethnic rebel groups.
- ^ Thant Myint-U (13 September 2011). Where China Meets India: Burma and the New Crossroads of Asia. Macmillan. ISBN 9781466801271.