WorldCat library record of Ph.D. thesis, Bangor University 2008, Karen Antoinette Roberta Lord: "Quantifying implicit religion: a critical assessment of definitions, hypotheses, methods and measures".
Truy cập ngày 26 tháng 4 năm 2013.  ^ WorldCat library record of Ph.D. thesis, Bangor University 2008, Karen Antoinette Roberta Lord: “Quantifying implicit religion: a critical assessment of definitions, hypotheses, methods and measures”.