1. American Pediatric Association. (2015). Gender identity development in children. Section on Lesbian, Gay, Bisexual, Transgender, Health and Wellness. Retrieved from https://www.healthychildren.org/English/ages-stages/gradeschool/Pages/Gender-Identity-and-Gender-Confusion-In-Children.aspx .
2. American Psychiatric Association. (2000). Diagnostic and statistical manual of mental disorders (4th ed., Text Revision). Washington, DC: American Psychiatric Publishing.
3. American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders (5th edn.). Arlington, VA: American Psychiatric Publishing.
4. American Psychiatric Association (APA). (2000). Therapies focused on attempts to change sexual orientation (reparative or conversion therapies): Position statement. http://www.psychiatry.org/File%20Library/Advocacy%20and%20Newsroom/Position%20Statements/ps2000_ReparativeTherapy.pdf .
5. Austin, A. & Craig, S. L. (2015). Transgender affirmative cognitive behavioral therapy: Clinical considerations and applications. Professional Psychology: Research and Practice, 46(1), 21–29.