Source(s) of the Criticism
- Origen Bachelor, Mormonism Exposed Internally and Externally (New York: Privately Published, 1838), 14. off-site 
 "And what kind of metal is ziff! Come, Joseph, on with thy 
goggles, and translate thy translation, and tell us what ziff means."
- Eber D. Howe, Mormonism Unvailed (Painesville, OH, 1834), 24–25, 45. (Affidavits examined)
 
- Stuart Martin, The Mystery of Mormonism (London: Odhams Press, 1920), 44.
 
- Walter Martin, The Kingdom of the Cults (Revised) (Minneapolis: Bethany House Publishers, 1997), 205. ( Index of claims )
 
- Parley P. Pratt to Oliver Cowdery, 26 May 1836, "[No title]," Latter Day Saints' Messenger and Advocate 2 no. 8 (May 1836), 318–20. off-site 
 Discusses Pratt's missionary encounter with this criticism. 
- Latayne Colvett Scott, The Mormon Mirage : a former Mormon tells why she left the church (Grand Rapids : Zondervan Pub. House, 1979), 83
 
- Simon Southerton, Losing a Lost Tribe: Native Americans, DNA, and the Mormon Church (Salt Lake City, UT: Signature Books, 2004) 199.  ( Index of claims )