http://digfir-published.macmillanusa.com/comer10ere/comer10ere_ch9_ex2.html
Chapter
ch01. Research Exercise
5acc6d4c7894d21a3a000001
http://digfir-published.macmillanusa.com/comer10ere/comer10ere_ch9_ex2_dlap.xmlDLAP questions5acc6d4c7894d21a3a000001