Some editors keep a paper for long time, more than 6 months or a year, without a decision and when send them a reminder message they do not reply or sometimes reply for the first time saying that the paper still under the review process, then do not reply again for long time. So I ask how a paper takes long time like that for the review process and usually the editors when they invite a reviewer, they ask him to finish the review process within 3 weeks. What the best way to resolve a problem like that, withdraw the paper or just submit to another journal?. The editors in meetings always talk about unethical behavior of authors and never talk about their unethical behavior on authors and during the publication process.