4Brown S, Lehto X. Travelling with a purpose: Understanding the motives and benefits of volunteer vacationers [ J ]. Current Issues in Tourism,2005,8 ( 6 ) :479-496.
5Brown S. Voluntom'ism-Traveling with a purpose : Understanding the Motives and Benefits [ D ]. Purdue University: West Lafayette, USA,2005.
6Barbieri C, Santos C A, Katsube Y. Volunteer tourism : On-the-ground observations from Rwanda [ J ]. Tourism Management ,2012,33 ( 3 ) :509-516.
7Bailey A W, Russell K C. Predictors of interpersonal growth in volunteer tourism :A latent curve approach [ J ]. Leisure Sciences, 2010,32 (4) : 353-368.
8Coghlan A. Towards an integrated image-based typology of volunteer tourism organizations [ J ]. Journal of Sustainable Tourism ,2007,15 ( 3 ) :267-287.
9Chen L J,Chen J S. The motivations and expectations of international volunteer tourists:a case study of" Chinese Village Traditions"[ J ]. Tourism Management,2011 32(4) :435442.
10Campbell L M,Smith C. What makes them pay? Values of volunteer tourists working for sea turtle conservation [ J ]. Environmental Management, 2006,38 ( 1 ) : 84-98.