Source: Educational Sciences: Theory and Practice, v13 n2 p806-811 Spr 2013. 6 pp.
Answered By: Linda Kern Last Updated: Dec 12, 2016 Views: 20
Not all articles have a DOI. The publisher must opt into the system. Although the majors have, some journals are independently published and are not part of the system. Additionally, the system is relatively new, so older articles will not have DOIs unless they have been retrospectively assigned.
I, too, am unable to locate a DOI for this article. When the DOI is not available, the URL of the journal's home page is used in the reference entry instead. I Googled the title of the journal, and it's home page is here: http://www.estp.com.tr/. See the DOIs and URLs in a Reference Entry box on the Citing Sources tab of the Advanced Education LibGuide for specifics on formatting the citation.