中文说明:老年人旅游消费特征及市场开发_于庆文
English Description:
Tourism consumption characteristics and market development of the elderly_ Yu QingwenTourism consumption characteristics and market development of the elderly_ Yu Qingwen
关注次数: 119
下载次数: 0
文件大小: 0.03M
中文说明:老年人旅游消费特征及市场开发_于庆文
English Description:
Tourism consumption characteristics and market development of the elderly_ Yu Qingwen老年人旅游消费特征及市场开发_于庆文.caj