1. Department of Chemistry, Faculty of Arts and Sciences, Dumlupınar University, Kütahya, Turkey,
2. Department of Physics Education, Gazi University, Ankara, Turkey,
3. Department of Biochemistry, Faculty of Arts and Sciences, Dumlupınar University, Kütahya, Turkey,
4. Department of Chemistry, Faculty of Science, Anadolu University, Eskişehir, Turkey, and
5. Department of Econometrics, Faculty of Economics and Administrative Sciences, Dumlupınar University, Kütahya, Turkey