JIA Yongfen books & textbook
800 Frequently Used Chinese Function Words
BEIJING LCU /2013-04-01 Paperback / 930 Pages
isbn-10: 7561934718 / isbn-13: 9787561934715
1700 Groups of Frequently Used Chinese Synonyms (English and Chinese Edition)
Blcup /2005-06-20 Paperback / 1641 Pages
isbn-10: 756191265X / isbn-13: 9787561912652