1. Albert, P. R., and C. Benkelfat. 2013. The neurobiology of depression–revisiting the serotonin hypothesis. II. Genetic, epigenetic and clinical studies. Philosophical Transactions of Royal Society. B: Biological Sciences 368(1615): 20120535. https://doi.org/10.1098/rstb.2012.0535
2. Al-Issa, I., and M. Tousignant. 1997. Ethincity, immigration and psycopathology. New York: Plenum Press.
3. American Medical Association. 1998. Essential guide to depression. New York: Pocket Books.
4. American Psychiatric Association. 2000. Diagnostic and statistical manual of mental disorders, (4th ed., text revision). Washington, DC: American Psychiatric Association.
5. Beck, A.T., A.J. Rush, A.J., B.F. Shaw, and G. Emery. 1979. Cognitive therapy of depression. New York: Guilford.