Two of my new papers have just been published in October 2021, open access: 

1 &  5  http://www.cjpas.net/current-issue/

http://oads/pdfs/15/3/1.%20David%20Zhang%205283-oads/pdfs/15/3/5.%20Zhang%20532If you are interested in reading more of my papers, please click:

https://www.researchgate.net/profile/Wenzhong-Zhang-2

The other two of my papers were published in June 2021: 

3. http://cjpas.net/wp-content/uploads/pdfs/15/2/2.%20Zhang%205221-5229.pdf… 

4. http://cjpas.net/wp-content/uploads/pdfs/15/2/5.%20Zhang%20%205247-5252.pdf… 

Another paper published this year:

https://doi.org/10.1080/1478422X.2020.1850070