April 2013 Advanced
Daily Desmos 32a (advanced)
Daily Desmos 31a (Advanced)
Daily Desmos 30a2 (Advanced)
Daily Desmos 30a1 (Advanced)
Daily Desmos 29a (Advanced)
Daily Desmos 28a (Advanced)
Daily Desmos 27a (Advanced)
Daily Desmos 26a (Advanced)
