This communication serves to notify you that commencing in Volume 7 Number 2, December 2024 onward, we are implementing Article Proccesing and Publication Charges (APCs). Author(s) (excluding Member of Editors/Editorial Board/Active Reviewer) should pay an Article Processing Charge (APC) of IDR 200.000 and (Article Publication Charge) IDR 300,000 per article, once the manuscript has been accepted. An invoice will be sent to the Authors whose article is accepted. The accepted articles will not be published until the APCs have fully been paid by the Author(s).