LONTAR publishes all its articles in full open access format. The scientific community and the general public have, for free, unlimited and immediate access to all content published in lONTAR as soon as it is published on the Internet. This means that LONTAR does not receive any income from selling subscriptions to print or view online versions of its journals or from charging "pay-per-view" fees. Therefore, LONTAR needs to defray its editorial and production costs by collecting article processing charges (APCs) from authors' institutes or research funding bodies. The value of LONTAR article processing charges (APCs) is $ 120.00 or equivalent to IDR 1,500,000.00. The APCs covers editorial services and production of an article. Submission to LONTAR is free of charge. APCs are paid when the editor states that the articles are accepted for processing to the next process.