http://bushlibrary.tamu.edu/education/lesson_plans/roles_of_the_president/Roles_of_Pres.pdf
http://www.scholastic.com/teachers/article/seven-roles-one-president
http://quizlet.com/4176577/8-roles-of-the-president-flash-cards/
http://www.scholastic.com/teachers/article/seven-roles-one-president
http://quizlet.com/4176577/8-roles-of-the-president-flash-cards/