Withdrawing submitted or published manuscripts is not recommended. If the author intends to retract the manuscript, the following rules must be followed:

1. Manuscripts may only be withdrawn for acceptable reasons. It must not be withdrawn due to being already published in another journal.

2. The author must make a letter requesting withdrawal of the manuscript to the chief editor, along with the reasons for withdrawal. All authors must know requests for withdrawal of the manuscript by signing the letter.

3. If the manuscript being withdrawn is in the process of being reviewed, the authors must pay 600,000 (IDR).

4. Accepted manuscript cannot be withdrawn for any reason.

5. If the review process of the manuscript is more than 6 months, the authors can withdraw the manuscript without charge.