The decision of publication of the article is given by two referees who has at least a doctorate degree and expert on relevant literature. The article is sent to two referees who are experts in their subjects by the editorial board. The double-blind peer review process is adopted for evaluating the articles. If both referees accepts, the article is accepted for publication. If one of the referees reports a negative report, the article is sent to a third referee. In accordance with the decision of the third referee, the decision of publication is given.