http://digfir-published.macmillanusa.com/video_human_comm/video_human_comm_ch160_1.htmlMcDaniel, Ex Astris Scientia52e193e7757a2eda03000000
http://digfir-published.macmillanusa.com/video_human_comm/video_human_comm_ch160_1_dlap.xmlDLAP questions52e193e7757a2eda03000000