Hackett, C., McClendon, D., Potančoková, M. <https://pure.iiasa.ac.at/view/iiasa/236.html> ORCID: https://orcid.org/0000-0001-6115-5952 <https://orcid.org/0000-0001-6115-5952>, & Stonawski, M. <https://pure.iiasa.ac.at/view/iiasa/297.html>  (2016).  Religion and Education Around the World.     Washington, DC: Pew Research Center.  ISBN 978-0-9974190-1-6