research refernece

http://books.google.co.uk/books?hl=en&lr=&id=y4C644zHCWgC&oi=fnd&pg=PA1&dq=the+gutenberg+galaxy&ots=KGV6ADNvSn&sig=Z5dHQErxslCZMJT2YEfuQs4xQyo#v=onepage&q&f=false

http://books.google.com/books?id=ebNp39oOUQ0C&printsec=frontcover&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false

http://books.google.co.uk/books?id=vu3lRLVUta8C&printsec=frontcover&dq=writing+systems:+a+linguistic+approach&hl=en&ei=VjAgTqzWHYOZhQeP0sWzAw&sa=X&oi=book_result&ct=result&resnum=1&ved=0CDAQ6AEwAA#v=onepage&q&f=false

http://www.ling.ohio-state.edu/~bjoseph/publications/2003lgconflict.pdf

http://books.google.co.uk/books?id=EnEFNOcYIrUC&printsec=frontcover&dq=When+languages+collide:+perspective+on+language+conflict,+language+competition,+and+language+coexistence&hl=en&ei=3mEgTvqqNceKhQeYk9DAAw&sa=X&oi=book_result&ct=result&resnum=1&ved=0CCoQ6AEwAA#v=onepage&q&f=false

http://www.scribd.com/doc/18689127/Language-Death-by-David-Crystal

+


http://humanities.uchicago.edu/faculty/mufwene/publications/HOW_LANGUAGES_DIE.pdf


http://books.google.com/books?id=d6jPAKxTHRYC&printsec=frontcover&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false

http://books.google.com/books?id=e4a5-ItuU1oC&printsec=frontcover&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false

http://www.ogilvy.com/News/Press-Releases/May-2010-Ogilvy-New-York-Hosts-New-Language-Art-Exhibition.aspx