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2.
Dorothy Lee, Freedom and Culture. A Spectrum Book, September 1964. pp. 53-58.
3.
F.L.K. Hsu, Clan, Caste, and Club. D. Van Nostrand Co., Inc. , Princeton New Jersey. 1963.
4.
Chan, Wing-tsit, "Chinese Theory and Practice", from Philosophy and Culture East and West, edited by C. A. Moore, University of Hawaii Press, 1962. pp. 81-95.
