The following are scientific papers which have been peer reviewed and published in reputable journals:
Creating a culture of health: hygiene behaviour change in community health clubs through knowledge and positive peer pressure.
Waterkeyn, JA and Waterkeyn, AJ. (2013)
The effectiveness and sustainability of two demand driven sanitation and hygiene approaches in Zimbabwe.
Creating a demand for sanitation through Community Health Clubs: a cost effective intervention in two districts of Zimbabwe.