Authors
Ilker Under
Anadolu University, Graduate School of Social Sciences, Eskisehir, Turkey
Ender Gerede
Eskisehir Technical University, Faculty of Aeronautics and Astronautics, Eskisehir, Turkey
© 2021 Ilker Under, Ender Gerede, published by University of Maribor
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.