共 5 条
[4]
Performance factors of small tourism ventures[J] . Miri Lerner,Sigal Haber.Journal of Business Venturing . 2000 (1)
[5]
The toxic effects of rubber contaminants on microbial food webs and zooplankton of two lakes of different trophic status[J] . Lisa Galbraith,Carolyn W. Burns.Hydrobiologia . 1997 (1)