The Fluctuation of Admission Fees of Some World Heritage Sites in West China and Its Impact on the Tourism Market——A Case Study of Gansu and Sichuan Provinces
SHI Hui-chun, YANG Er-jun
JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY . 2007, (2): 272 -278 .  DOI: 10.7522/j.issn.1000-0240.2007.0040

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