?? ??? ??? ???? ??? ???? ?? ??? ???? ? ??? ? ? ????. ??? ?? ??? ???? ?? ????? ? ? ?? ? ? ?? ? ??? ? ?? ?????. ?? ?? ???? ?? ??? ?? ?? ?? ??? ???? ???? ?? ??? ?????. As a result of its lasting attribute, DOIs are the popular form of electronic details to incorporate in APA citations. When a DOI