1. Armed Forces Health Surveillance Center, 2012. Deaths While on Active Duty in the U.S. Armed Forces, 1990–2011. MSMR 19, 2–5.
2. Beck, A.T., 1993. Beck Scale for Suicide Ideation. The Psychological Corporation, San Antonio, TX.
3. Manual for the Beck Hopelessness Scale;Beck,1993
4. Beck, A.T., Steer, R.A., 1993b. The Beck Anxiety Inventory. The Psychological Corporation, San Antonio, TX.
5. The Beck Depression Inventory;Beck,1996