M. EMIN ÖZDEMIR

Ataturk University, K.K. Education Faculty, Department of Mathematics, Erzurum, Turkey

AHMET OCAK AKDEMIR

Ağri İbrahim Çeçen University, Faculty of Science and Letters, Department of Mathematics, AĞRI, Turkey

HAVVA KAVURMACI

Yüzüncü Yil University, Education Faculty, Department of Mathematics, Van, Turkey