20-01-2017 Both in Ethiopia and in the countries of East Africa, the continuing proliferation and spread of invasive alien species (IAS) is now recognized as a serious problem, which needs to be addressed. While this situation has improved dramatically over the past 10 years, further progress has been...
Tài Nguyên Chính01-01-1976 Perspectives for developing countries for controlling aquatic weeds and using them to best advantage, especially those methods that show promise for less-developed countries. ASIN:B001988YC8