Raath, A., and S. de Freitas. “Samuel Rutherford’s Theologico-Political Federalism in Early American Society”. Tydskrif Vir Christelike Wetenskap | Journal for Christian Scholarship, Vol. 48, no. 3-4, Dec. 2012, pp. 1-42, http://pubs.ufs.ac.za/index.php/tcw/article/view/287.