共 26 条
- [21] NEWSHAM P, 1993, GEOGR MAG APR, P33
- [22] PLEUMAROM A, 1992, ECOLOGIST, V0022, P00104
- [23] Rai SC, 1997, AMBIO, V26, P235
- [24] RAI SC, 1994, ENV B, V2, P96
- [25] Sood VK, 1999, GEOGR REV INDIA, V61, P173
- [26] SRIVASTAVA AK, 2006, SIKKIM SMALL BEAUTIF