Ralph R. Cowell, "Sung, John Shang-chieh," Gerald H. Anderson, ed., Biographical Dictionary of Christian Missions. Grand Rapids, MI: Cambridge, UK: Eerdmans, 1988. Pbk. ISBN: 0802846807. p.652. | |
Leslie T. Lyall, A Biography of John Sung. Flame for God in the Far East, 4th edn. London: China Inland Mission, 1954. Hbk. pp.204. pdf [Reproduced by kind permission of OMF International-UK] |