Li Yacui 
Research on Mandarin Education 

The book is composed based on the combination of theories and practice, contrast of dialect of Shanxi province and relation between practice and proficiency test of mandarin. The book, based on fundamental theory, is targeted in training and guidance of Shanxi dialect and assisted by some materials such as vocabularies and tongue twisters. In addition, reading and speaking chapters of The Guidelines for the Putonghua Proficiency Test.