PROBLEM SOLVING - tempat bertanya PR Kaskuser (SD, SMP, SMA) - Part 2
gans mau tanya nih kimia kelas 10 http://i1105.photobucket.com/albums/h353/Nauvals78/2013-03-30175245.jpg http://i1105.photobucket.com/albums/h353/Nauvals78/2013-03-30175352.jpg http://i1105.photobucket.com/albums/h353/Nauvals78/2013-03-30183002.jpg tolong ya gans ane senin udah ujian :mewek :m