都市区旅行社空间布局特征与销售等级差异——以重庆旅游百事通为例
도시구여행사공간포국특정여소수등급차이——이중경여유백사통위례
The Spatial Distribution and Differences in Marketing Performance of Travel Agency Branch Shops in the Metropolitan Area: Chongqing's Travelling Bestone as a Case