Amacher, Gregory S. et al. <br/><br/>
Disease, microdams and natural resources in Tigray, Ethiopia: impacts on productivity and labour supplies 

 -  2004 
 - p.122-45. 
 - Aug 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural resources - Ethiopia<br/>Labour supply - Ethiopia<br/>Productivity - Ethiopia<br/>Diseases - Ethiopia<br/>Natural resources