*[http://www.scienceblog.com/community/older/2003/A/20037338.html Psychology researcher says spiritual meaning of Christmas brings more happiness than materialism - Scienceblog and University of Warwick] | *[http://www.scienceblog.com/community/older/2003/A/20037338.html Psychology researcher says spiritual meaning of Christmas brings more happiness than materialism - Scienceblog and University of Warwick] |