ÜMMET, D. Et Al. The Existential Concerns Questionnaire (ECQ): A Study of Validity and Reliability. 2018. In Research and Development on Social Sciences , International Association of Social Science Research, Bialystok, 423-430.

ÜMMET, D., EKŞİ, H., Özkapu, Y., & EKŞİ, F., (2018). The Existential Concerns Questionnaire (ECQ): A Study of Validity and Reliability. Research and Development on Social Sciences (pp.423-430), Bialystok: International Association of Social Science Research.

ÜMMET, DURMUŞ Et Al. "The Existential Concerns Questionnaire (ECQ): A Study of Validity and Reliability." In Research and Development on Social Sciences , 423-430. Bialystok: International Association of Social Science Research, 2018

ÜMMET, DURMUŞ Et Al. "The Existential Concerns Questionnaire (ECQ): A Study of Validity and Reliability." Research and Development on Social Sciences , International Association of Social Science Research, 2018, pp.423-430.

ÜMMET, D. Et Al. (2018) "The Existential Concerns Questionnaire (ECQ): A Study of Validity and Reliability", Research and Development on Social Sciences . Bialystok: International Association of Social Science Research.

@bookchapter{bookchapter, author ={DURMUŞ ÜMMET Et Al. }, chaptertitle={The Existential Concerns Questionnaire (ECQ): A Study of Validity and Reliability}, booktitle={ Research and Development on Social Sciences}, publisher={International Association of Social Science Research}, city={Bialystok},year={2018} }