Soviet education edition. According to the inquiry of Xishuangbanna Education Bureau, the textbooks in Yunnan are not uniform, and the textbooks in Xishuangbanna Primary School are the Soviet version. Xishuangbanna is one of the eight autonomous prefectures in Yunnan Province. Jinghong, the capital, is located on the northern edge of the tropical zone south of the Tropic of Cancer, with an area of 19 124.5 square kilometers.