ទ្រឹស្ដីគមនាគមន៍៖ ភាពខុសគ្នារវាងកំណែនានា

<ref name="Craig">{{cite book |title=Communication Theory as a Field |last=Crag |first=Robert T. |authorlink= |coauthors= |year=1999 |publisher=International Communication Association |location= |isbn= |page= |pages= |url=http://www.colorado.edu/communication/meta-discourses/Bibliography/Craig%20(1999)/CTasaField.html |accessdate=12.07.2011}}</ref>