Starting May 1, 2025, all accepted submissions will be subject to an Article Processing Charge (APC) of USD 15 / IDR 200,000. This applies to all manuscripts submitted on or after this date.
Partial or full waivers may be granted at the editor’s discretion for authors facing financial constraints, excessive manuscript length, or other valid reasons. Authors requesting a waiver must clearly state their request in the "Comments to the Editor" section during the submission. Waiver requests submitted after acceptance are unlikely to be considered.