Affiliation: | 1. Ahi Evran University, Kirsehir, 40100, Turkey 2. Institute of Mathematics and Mechanics, Azerbaijan NAS 9, F. Agaev St., Baku, AZ 1141, Azerbaijan 3. Nigde University, Nigde, 51245, Turkey 4. Institute of Mathematics and Mechanics, Azerbaijan NAS 9, F. Agaev St., Baku, AZ 1141, Azerbaijan 5. Nakhchivan Teacher-Training Institute, Nakhchivan, AZ 7003, Azerbaijan
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