Authors
Hidayet Hüda Kösal
Department of Mathematics, Sakarya University, 54187 Serdivan /, Sakarya, Turkey
Mahmut Akyiğit
Department of Mathematics, Sakarya University, 54187 Serdivan /, Sakarya, Turkey
Murat Tosun
Department of Mathematics, Sakarya University, 54187 Serdivan /, Sakarya, Turkey