Research Article
Feyzi Başar
Ali Görgülü
Mehmet Palamutoğlu
K Chandrasekhara Rao
Ashraf Mehd
C Orhan
S.a Robertson
M.o Abou-elata
Erdoğan Esin
A Görgülü
Hround Eid Rabadı
Communications Faculty of Sciences University of Ankara Series A1 Mathematics and Statistics.