Ölçülen Özellikler: Varoluşsal Endişe

Ümmet, D., Ekşi, H., Özkapu, Y., & Ekşi, F. (2018). The Existential Concerns Questionnaire (ECQ): A study of validity and reliability. Research and Development on Social Sciences, 423-429.

Gökdemir-Bulut, B. P., & Bozo, Ö. (2018). The psychometric validity and reliability of the Turkish version of the Existential Loneliness Questionnaire. Current Psychology, 37, 401-413.