http://digfir-published.macmillanusa.com/video_human_comm/video_human_comm_ch63_1.htmlConfidence (NEEDS IMPROVEMENT)52e066a0757a2efb71000000
http://digfir-published.macmillanusa.com/video_human_comm/video_human_comm_ch63_1_dlap.xmlDLAP questions52e066a0757a2efb71000000