7MELLOR JW. The economics of agricultural development [M]. 1966.
8RIDDLE D1, SOURS MH. Service industries as growth lead- ers on the pacific rim[J]. Asia Pacific Journal of Manage- ment,1984,1(3) :190-199.
9ALSTON JULIAN M. Financing Agricultural Research: In- ternational Investment Patterns and Policy Perspectives[J]. World Development, 1998,26 (6) : 1057 - 1071.
10OPPERMANN M. Rural Tourism in Germany: Farra and Rural Tourism Operators[J]. The business of rural tourism, International perspectives, 1997 : 108- 119.