John Carter, Katie Carter, Bonnie MacKenzie, Hannah Paris and Brian Paris. 2012. "A Sociolinguistic Survey of Amara." SIL International. Online: http://silorg.devcloud.acquia-sites.com/resources/publications/entry/48….
Lewis, M. Paul, Gary F. Simons, and Charles D. Fennig (eds.), 2013. Ethnologue: Languages of the World, 17th edition. Dallas, Texas: SIL International. Online version: http://www.ethnologue.com.