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2. Cheng, Y. (1928). Yuanming Yuan kao [A Critical Study of Yuanming Yuan]. Shanghai: Zhonghua. This work can also be seen in YMYJ, (Vol. 1, pp. 95–113).
3. Danby, H. (1950). The garden of perfect brightness: The history of Yuan Ming Yuan and of the Emperors Who Lived There. London: William & Norgate.
4. Dillon, E. J. (1901). The Chinese Wolf and the European Lamb. Contemporary Review, 79(July), 1–17.
5. Huang, J. (1979). Huasuirensheng’an zayi quanbian [The complete notes of the Huasui rensheng studio]. 1943. Reprint (in 3 Vols.), Taibei: Linking.