Author is not allowed to withdraw submitted manuscripts, because the withdrawal is waste of valuable resources that editors and referees spent a great deal of time processing submitted manuscript, money and works invested by the publisher.
If author still requests withdrawal of his/her manuscript when the manuscript is still in the peer-reviewing process, author will be punished with paying IDR 500.000,- per manuscript, as withdrawal penalty to the publisher. However, it is unethical to withdraw a submitted manuscript from one journal if accepted by another journal. The withdrawal of manuscript after the manuscript is accepted for publication, author will be punished by paying IDR 1.000.000,- per manuscript. Withdrawal of manuscript is only allowed after withdrawal penalty has been fully paid to the Publisher.
If author don't agree to pay the penalty, the author and his/her affiliation will be blacklisted for publication in this journal.