KUPERUS, T. Peter Greer and Chris Horst, with Jill Heisey,. Rooting for Rivals: How Collaboration and Generosity Increase the Impact of Leaders, Charities, and Churches. Minneapolis, MN: Bethany House, 2018. Christian Relief, Development, and Advocacy: The Journal of the Accord Network, [S. l.], v. 1, n. 1, p. 57–58, 2019. Disponível em: https://crdajournal.org/index.php/crda/article/view/217. Acesso em: 29 mar. 2024.