Van Zyl, M. 2007. Karl Barth’s theology of nature: Safeguard against the natural theologies of both fundamentalism and secularism. NGTT | Nederduitse Gereformeerde Teologiese Tydskrif. 48, 3&4 (Dec. 2007). DOI:https://doi.org/10.17570/ngtt.2007.v48n3.a22.