1. Bredekamp, Henry and Robert Ross, eds., Missions and Christianity in South African History (Johannesburg: Witwatersrand University Press, 1995)
2. Brock, Peggy, N. Etherington, G. Griffiths, and J. Van Gent. Indigenous Evangelists Questions of Authority in the British Empire 1750–1940 (Leiden: Brill, 2015).
3. De Gruchy, John W. The Church Struggle in South Africa (Grand Rapids: Eerdmans, 1986).
4. Elbourne, Elizabeth. “Early Khoisan Uses of Mission Christianity,” in H. Bredekamp and R Ross, eds., Missions and Christianity in South African History (Johannesburg: Witwatersrand University Press, 1995).
5. Elphick, Richard. The Equality of Believers: Protestant Missionaries and the Racial Politics of South Africa (Charlottesville: University of Virginia Press, 2012).