http://digfir-published.macmillanusa.com/video_human_comm/video_human_comm_ch216_1.htmlReasoning: Inductive52e2a8eb757a2e3211000000
http://digfir-published.macmillanusa.com/video_human_comm/video_human_comm_ch216_1_dlap.xmlDLAP questions52e2a8eb757a2e3211000000