1. Design of village with sustainable development;Wang;Architectural Journal,1996
2. R. Thomas, Environmental Design, E & FN Spon, London, 1999.
3. J.Y. Hou, Z.Y. Ren, P.N. Zhou, C.Z. Li, Cave Dwelling Houses, Chinese Construction Industry Press 1984, (Chapters 3, 5 and 9).
4. B.T. Zhang, Z.Y. Liu, The Dwelling Houses of ShaanXi, Chinese Construction Industry Press 1989, pp. 77–96.
5. J.Y. Hou, J. Wang, Chinese Cave Dwellings, Henan Science and Technology Press 1999, pp. 116–133.