2Doris Lessing. "Introduction" The Golden Notebook [M]. New York: Bantam, 1973.
3Boberta Rubinstein. The Novelistic Vision of Doris Lessing: Breaking the Forms of Consciousness [M]. Urbana, Chicago & London: University of Illinois Press, 1979.
4Shirley Buhhos. The Theme of Enclosure in Selected Works of Doris Lessing [M]. Troy, N. Y. :Whitston, 1987.