Before submitting your manuscript, please carefully read the guidelines and instructions to authors. Manuscripts not conforming to these guidelines may be returned. All manuscripts should be submitted electronically. Please attach to every submission a covering letter conforming that all authors have agreed to the submission and that the article in not currently being considered for publication by any other journal or publisher. Manuscripts and illustrations should be submitted to the editor by email attachment to . Language. The journal’s language is British or American English spelling and terminology. Manuscripts Presentation. Manuscripts should be typewritten in Times New Roman of 11 pt, in one spacing throughout, fully numbered, leaving adequate margins on all sides to allow reviewers’ remarks. The format of presentation consist of the title of the manuscript (maximum 12 words), the author(s)’ name and affiliation (including the e-mail address), an abstract (maximum 250 words) with 4-7 keywords, the introduction (with no explicit title), Method, Results, Discussion, Conclusion, Acknowledgement, and References.