Journal of Natural Resources, Volume. 35, Issue 7, 1525(2020)
Renewal review and research prospect of Classification, Investigation and Evaluation of Tourism Resources for national standard of the People's Republic of China
Fig. 1. The change of the number of papers on tourism resources research
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Kai BAI, Xin WANG. Renewal review and research prospect of Classification, Investigation and Evaluation of Tourism Resources for national standard of the People's Republic of China[J]. Journal of Natural Resources, 2020, 35(7): 1525
Received: Dec. 17, 2019
Accepted: --
Published Online: Jan. 6, 2021
The Author Email: BAI Kai (bkshaanxi@163.com)