Additional Internal Evidence of the Authenticity of the Book of Mormon I Ball, Isaac B.. "Additional Internal Evidence of the Authenticity of the Book of Mormon I." Improvement Era 34, no. 7 (1931): 387-389, 428-429.
Additional Internal Evidence of the Authenticity of the Book of Mormon II Ball, Isaac B.. "Additional Internal Evidence of the Authenticity of the Book of Mormon II." Improvement Era 34, no. 8 (1931): 457-459, 494-495.