1] Mondics, Jamie. “How to Help Someone with Depression.” Mental Health First Aid. 8 September 2018, https://www.mentalhealthfirstaid.org/external/2018/09/how-to-help-someone-with-depression/
2] National Institute of Mental Health. “Depression and College Students.” :https://www.nimh.nih.gov/health/publications/depression-and-college-students/index.shtml#pub5
3] National Institute of Mental Health. “Major Depression.” 2017, https://www.nimh.nih.gov/health/statistics/major-depression.shtml
4] National Institute of Mental Health. “Persistent Depressive Disorder (Dysthymic Disorder).” November 2017, https://www.nimh.nih.gov/health/statistics/persistent-depressive-disorder-dysthymic-disorder.shtml
5] Rosenthal, Norman. “Winter Blues.” Google Books, 2013, https://books.google.com/books?hl=en&lr=&id=-B5RLgjErTAC&oi=fnd&pg=PP2&ots=EwnM3FwKjC&sig=pdWhgw2BXJBjcJz_plwk_OUKXGU#v=onepage&q&f=false16] Shleton, Jessica. “Depression Definition and DSM-5 Diagnostic Criteria.” 18 March, 2019, https://www.psycom.net/depression-definition-dsm-5-diagnostic-criteria/#dsm-5diagnosticcriteria

Raylan Vanderau