DAFTAR PUSTAKA Sumber : map.google.com http://www.greenmap.org/greenhouse/en/node/6647 http://www.infrastructurist.com/2009/09/10/the-worlds-10-greatest-city-parks-viewedfrom-above http://id.wikipedia.org/wiki/Manhattan http://id.wikipedia.org/wiki/Central_Park http://id.wikipedia.org/wiki/San_Francisco http://id.wikipedia.org/wiki/Madrid BPS Kota Medan Sumber : http://www.medantalk.com umber : http://www.hai-online.com Sumber : http://www.pemkomedan.go.id Project for Public Spaces in New York tahun 1984 Wikipedia Bahasa Indonesia, Ensikopledia Bebas kerockan.blogspot.com widhoy.multiply.com/journal/item/15 id.answers.yahoo.com www.yousaytoo.com/sudjarwo wino.blogdetik.com/ http://fatchuur.multiply.com/journal/item/180 http://fatchuur.multiply.com/journal/item/180 Jaali, H. 2007. Psikologi Pendidikan. Jakarta: Bumi Aksara http://www.psikologizone.com/faktor-mempengaruhi-perubahan-kepribadian http://eko13.wordpress.com/2008/03/16/ciri-ciri-dan-faktor-yang-mempengaruhikreativitas/ http://en.wikipedia.org/wiki/Skateboard http://en.wikipedia.org/wiki/Skatepark http://www.hariansumutpos.com/2010/04/38430/satu-satunya-di-medan-tertariklapangan-merdeka.html http://frontside180.com/forum/YaBB.pl?num=1266373170/10 http://www.skateproducts.net/skatepark.html