How many words should an article have?

An article should have 4000-11000 words with a single space between lines although it is requested to prepare the text files double spaced in the first submission.

The article files should be sent as an individual file or separately?

It is preferred to separate files for instance, a manuscript file, a figure file and a table file.

What should the title page and the main document contain?

The title page should include the title of the article and the names of the authors with their affiliations and the main document should contain all parts of the article (including title, abstract, keywords, main text, acknowledgments references and appendices) except the authors’ names.