1986 which publishing house was used for the Chinese textbooks for junior middle schools in Inner Mongolia?

People education. 1986, the Chinese textbook for junior middle schools in Inner Mongolia was published by People's Education Publishing House, and the history of Baotou was published by Beijing Normal University. Education departments in various regions are qualified to choose teaching materials, and mathematics in Kundulun District of Baotou City is published by Beijing Normal University. Only a few areas use textbooks from other publishing houses, and most junior high school textbooks in Inner Mongolia use People's Education Edition.