Tolong jelaskan mengenai Pustaka tambahan dari John Sung

Sung, Shang-chieh. (1995.) The diaries of John Sung: An autobiography (Unknown Binding). Luke H. Sheng, Stephen L. Sheng.ASIN: B0006QUQ2U

Leslie T Lyall (1964). John Sung: Flame for God in the Far East. Moody Press.ASIN: B0007FDM0I