Scientific Research and Essays 1992-2248 Academic Journals 10.5897/SRE2015.6369 Funda Aut . Raci Bayer * E-mail: racibayer@hotmail.com 2017 30 05 2017 10 12 2015 15 06 2016 12 10 88 102 This is an open-access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. This article is available from http://politicalwaffle.uk/journal/SRE/article-abstract/C9B95A065375 The full text article is available as a PDF file from http://politicalwaffle.uk/journal/SRE/article-full-text-pdf/C9B95A065375 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28