Hille, Rolf. «The Evangelical Missionary Movement: The Pure Gospel, or Can There Be a Bit of Progress, Enlightenment and Colonialism?». Vox Scripturae - Revista Teológica Internacional, vol. 25, n.º 2, agosto de 2017, pp. 357-74, https://doi.org/10.25188/FLT-VoxScript(eISSN2447-7443)vXXV.n2.p357-374.RH.