http://dl.dropbox.com/u/19163210/materialchem/Materials_CH4_sol.pdf

http://dl.dropbox.com/u/19163210/materialchem/Materials_CH5_sol.pdf

http://dl.dropbox.com/u/19163210/materialchem/Materials_CH6.pdf

http://dl.dropbox.com/u/19163210/materialchem/Materials_CH18_sol.zip

http://dl.dropbox.com/u/19163210/materialchem/Materials_CH12_sol.zip

http://dl.dropbox.com/u/19163210/materialchem/Materials_CH8_sol.zip