1- Morsi, Abu Bakr; (2000), identity crisis and psychological depression among university youth, a psychological study, Volume (7), Number (3), pp. 25-28.
2- Zahran, Hamed Abdel Salam; (2006) Mental Health and Psychotherapy, 2nd Edition, Cairo, World of Books, 1979, p. 57.
3- Masoud, Sana Mounir Masoud; (2006), Some Variables Related to Future Anxiety, Master Thesis (unpublished), College of Education, Egypt, p. 122.
4- Sydney M. Landsman, Jordan and Ted; (1988) The Right Personality, translated by Hamdali Al-Karbouli and Mowaffaq Al-Hamdani, Baghdad, Higher Education Press, pg. 29.
5- Abdullah, Lieutenant General; (2016), Constructing a measure of mental health among elite football club players in Baghdad, unpublished doctoral thesis, p. 176
6- Al-Obaidi, Muhammad Jassim; (2009), Mental Health Problems - Diseases and Treatments, 1st Edition, Amman, Dar Al Thaqafa for Publishing and Distribution, p. 10.
7- Moawad, Mohamed Abdel-Tawab (1996), The effect of cognitive therapy and religious psychotherapy in reducing future anxiety among a sample of university students, unpublished doctoral dissertation, Faculty of Education, Cairo University, p. 68.
8- Rabih, Muhammad Shehata (2010), The Principles of Psychology, Amman, Dar Al-Masira for Publishing and Distribution, p. 469.
9- Mohamed, Mai (1999), et al. Distinguishing between Anxiety and Depression (Psychological Studies), Volume 12, Issue 4,2002, p.87.
10- Al-Zobaie, Nasir Haratah Fares; (1998), Mental health and its relationship to social interaction among university students, University of Baghdad, College of Arts, PhD thesis.
11- Muhammad, Heba Moayad; (2015), Future anxiety among young people and its relationship to some variables, Journal of Psychological and Educational Research, No. 7, Center for Educational Studies and Psychological Research, Cairo.