Article processing charges are required for publication. An invoice for article processing charge will be sent to the first author before publication.

• • Basic: ￦200,000 (US$200) per article.
• • Additional fees:

  - Research articles supported by research fund: ￦200,000 (US$200) per article.
  - Over 10 printed pages: ￦30,000 (US$30) per page.