Eijk, Toon van (2010), Development and work ethic in sub-Saharan Africa. The mismatch between modern development and traditionalistic work ethic + Eijk, Toon van (2010), Civic driven change through Self-Empowerment. Societal transformation and consciousness based development : Lulu Press (self-publisher), pp. 257, ISBN9781409288688, US 23,50 + Lulu Press (self-publisher), pp. 161, ISBN 9781445748399, US 20,-. - Renkema, David (Religie & Samenleving, 2012)