**Author details**

Ülkü Saritaş1 \* and Yücel Üstündağ2

1 Emeritus Professor, Suleyman Demirel University, Turkey

2 Bülent Ecevit University, Zonguldak, Turkey

\*Address all correspondence to: saritasulku@yahoo.com

© 2021 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
