by Tura, Umit
Published in Pressacademia (01.02.2024)

by Akbiyik, Mucahit, Akbiyik, Seda Yamac, Kaya, Feridun, Erer, Elif, Tura, Umit
Published in Pressacademia (30.12.2021)

by TURA, Ümit, KAYA, Ferudun
Published in Abant Sosyal Bilimler Dergisi (31.07.2022)

by Tura, Ümit, Kaya, Ferudun
Published in Econder International Academic Journal (31.12.2019)

by Tura,Ümit, Kaya,Ferudun
Published in Econder Uluslararası Akademik Dergi (01.02.2019)

by AKBIYIK, Mücahit, YAMAÇ AKBIYIK, Seda, TURA, Ümit, ERER, Elif, ÇALIŞ, Mehtap, KAYA, Ferudun
Published in Turkish Journal of Mathematics and Computer Science (30.06.2023)

by AKBAŞ, Fatih, TURA, Ümit, KAYA, Ferudun
Published in Bartin University Journal of Faculty of Economics & Administrative Sciences (31.05.2021)