Pretorius, S. P. “Family Alienation Is Presented As a Requirement for Total Commitment in Some New Religious Groups”. Tydskrif Vir Christelike Wetenskap | Journal for Christian Scholarship, vol. 46, no. 3 - 4, Dec. 2010, pp. 125-42, https://pubs.ufs.ac.za/index.php/tcw/article/view/224.