1. The communicative role of silence in Akan;Agyekum;Pragmatics,2002
2. Nonverbal Communications: Forms and Functions;Anderson,2008
3. Gestures: the Do's and Taboos of Body Language Around the World;Axtell,1991
4. Politeness: Some Universals in Language Use;Brown,1987
5. Posture and Gesture;Bull,1987