1. Ghaffari Sh. Factors affecting the employment status of pensioners. Tehran: Civil Servants Pension Fund; 1384.
2. Psychological and psychosocial predictors of attitudes to working past normal retirement age
3. Hedge JW, Borman WC, Lammlein SE. A look back and a look toward the future. 2006.
4. Vaghee S, Meshkin Yazd A, Asgharipour N, Ebrahimzadeh S. The effect of critical thinking training on nurses\' job stress in psychiatric ward. Journal of undamentals of Mental Health, 2014, 1(61): 12-21.
5. Darvishpoor Kakhki A,Ebrahim H, Hamid Alavi-Majd. Medical University Hospital Nurses\' Health status anymore. 1388. 22 (60): 19-27