All the articles that published in this journal are freely available online (open access). This journal only publishes online versions, not provide a commercial reprint service for the article published in all issue.

To make it possible, there is an article processing charge (APC) to cover the range of the publishing services that we provide. The charges are including the provision of online tools for editors and authors, article producing and journal website hosting, article abstracting and indexing services, and customer services.

The APC is charged to the author when their manuscript is going to be reviewed with the amount provided below:

• Local author: IDR 750.000,- (For Indonesian Authors)

• International author: $ US 50,- (Non-Indonesian Authors or For foreigners)

For foreign and Indonesian authors details are conveyed via Email.

Waiver or partial waiver of author fees may be decided by the editor in case of lack of funding, excessive length of the submitted manuscript or other reasonable reasons provided by the author during the submission.

The author should clearly declare that he asks for a waiver in the comments to the Editor box during their submission. A waiver is most likely to be denied if it is not asked in this stage. The waiver will have no effect to the review result.