Atsushi Koike, Zhongmin Xu, Kang Wang, and Bunei Itoga. “Impact Analysis of Water Price Reform of Zhangye, China”. GEOMATE Journal 1, no. 2 (December 30, 2011): 122–129. Accessed July 5, 2022. https://geomatejournal.com/geomate/article/view/1217.