Watchman Nee (1993). “The Finest of the Wheat, vol 2 - Hardcover: Selected Excerpts from the Published Works of Watchman Nee”, p.69, Christian Fellowship Publishers
Charlotte Perkins Gilman (2015). “Women and Economics - A Study of the Economic Relation Between Men and Women as a Factor in Social Evolution: From the famous American writer, feminist, social reformer and a respected sociologist who holds an important place in feminist fiction, well-known for her stories The Yellow Wallpaper and Herland”, p.103, e-artnow