http://hiphopflava.net/article_collect_slang-dictionary.php
Problematic language of Hip Hop music Watanabe Tomohiko Paulownia review (15), 43-50, 2009 大東文化大学大学院文学研究科英文学専攻
http://www.urbandictionary.com/define.php?term=hip%20hop%20slang
http://books.google.co.jp/books?id=YPhmGG-2QAkC&printsec=frontcover#v=onepage&q&f=false