JTTM: Mechanical engineering applied journal is a journal that can be freely used (open access) and can be distributed to all authors:

If the article is accepted for publication, the authors shall pay for the Article Processing Charges at the amount of IDR  500.000,- per manuscript. We are waiving the Article Processing Charges in full until the end of 2022.

The costs are used in the process of publishing articles, and the following costs are associated with it: 

1. The cost of having articles reviewed by Journal Reviewers
2. Processing fees for online articles
3. The expense of rearranging the layout of the article
4. The price of plagiarism detection for articles once (only)
5. Registration fee for the DOI