20. References
Slide 6&7: Photo By Elijah Brown
Slide 9,10,11: Photo By Elijah Brown
Slide 11: Photo By Pathway Studios
Slide 11: Photo By AlvoSoul CEO
http://pixabay.com/en/america-map-usa-295464/
https://media.licdn.com/mpr/mpr/p/6/005/06e/
38f/0ccf2fe.jpg
http://www.clipartbest.com/cliparts/aTq/o5R/
aTqo5RjXc.png