Bakker (2014)
Bakker, Janel Kragt. 2014. Sister Churches: American Congregations and Their Partners Abroad. New York: Oxford University Press.
Adler & Offutt (2017)
Adler Jr., Gary J. and Stephen Offutt. 2017. “The Gift Economy of Direct Transnational Civic Action: How Reciprocity and Inequality Are Managed in Religious “Partnerships”.” Journal for the Scientific Study of Religion 56(3):600-19. doi: https://doi.org/10.1111/jssr.12369.