International Primary Education Research Journal. Özkan ÇELİK.
Chicago-čujuhus (17. p.)International Primary Education Research Journal. Özkan ÇELİK.
MLA-čujuhus (9. p.)International Primary Education Research Journal. Özkan ÇELİK.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.